UJ Criminology: Introduction to Criminal Behaviour Exam Notes and Study Guide

Criminal behaviour is one of the central concerns of criminology because it asks not only what people do, but why they do it, how society responds, and how those responses can prevent or worsen harm. In the University of Johannesburg context, introductory criminology normally begins with the basic concepts, major theories, and practical ways of understanding crime as a social and behavioural phenomenon. These notes provide a structured study guide to help with revision, essay preparation, and exam answers in a South African university setting.

1. Meaning of Criminal Behaviour and the Scope of Criminology

Criminology is the systematic study of crime, criminals, criminal behaviour, victims, and social reactions to crime. It is broader than criminal law. Criminal law defines prohibited conduct and prescribes punishment, while criminology examines the causes, patterns, consequences, and control of offending. In introductory modules at the University of Johannesburg, this distinction matters because students are expected to think analytically rather than simply memorise offences. A burglary, assault, or robbery is not just a legal event; it is also a behavioural act shaped by individual choices, social environment, opportunity, and institutional responses.

What criminal behaviour means

Criminal behaviour refers to conduct that violates the criminal law of a particular society and is punishable by the state. However, criminology also studies acts that are harmful but may not always be criminalised in the same way across jurisdictions, such as corruption, white-collar misconduct, domestic abuse, or cyber-enabled fraud. This broader approach is important because criminal behaviour is socially constructed. What counts as crime in one period or place may not count in another, and legal definitions often reflect political, moral, and historical forces.

A useful way to understand criminal behaviour is through four linked ideas:

Legality – the conduct must fall within a legal definition of crime.
Harm – the conduct causes or threatens harm to individuals, property, institutions, or social order.
Intent or fault – many crimes require some degree of intention, recklessness, or negligence.
Social response – crime becomes visible through policing, reporting, prosecution, and public concern.

For example, in a South African context, hijacking, housebreaking, assault, and murder are clearly criminal. Yet acts such as bribery, fraudulent procurement, or environmental pollution may be less visible to the public even though they may create larger social harm. Introductory criminology encourages students to look beyond sensational street crime and recognise that the criminal justice system deals with a wide range of harmful conduct.

Criminology as a discipline

Criminology draws on sociology, psychology, law, anthropology, economics, political science, and history. This interdisciplinary nature is essential. No single factor explains all crime. Psychology may help explain impulsivity or antisocial traits, sociology may explain inequality and social disorganisation, and economics may help explain rational decisions under conditions of opportunity and risk. A strong exam answer should therefore show that criminal behaviour is multi-causal rather than caused by one fixed reason.

Criminology differs from related fields in important ways:

Field	Main concern	Example
Criminal law	Defines offences and penalties	The law on robbery and sentencing
Criminology	Explains crime and social response	Why robbery rates increase in certain areas
Penology	Punishment and correction	How prisons rehabilitate offenders
Victimology	Victims and victimisation	Why certain groups are repeatedly targeted
Criminal justice	Institutions and processes	Police, courts, prisons, parole

This distinction often appears in exam questions because students are expected to identify the proper analytical lens. If the question asks about “why young men in a township may participate in robbery,” the best answer is criminological. If the question asks “what punishment applies to robbery,” the answer is legal. If the question asks “how prisons manage such offenders,” the answer moves into penology and corrections.

Measuring crime and understanding the “dark figure”

A crucial introductory concept is the dark figure of crime, meaning the amount of crime that is not reported to police or otherwise recorded. Official statistics show only the crimes known to the authorities, not all crimes committed. This creates a major problem for studying criminal behaviour because the visible data may understate certain offences and overstate others depending on reporting practices.

In South Africa, as in many countries, crimes such as domestic violence, sexual offences, corruption, and cybercrime may be heavily underreported due to fear, shame, lack of trust in institutions, or uncertainty about whether reporting will help. On the other hand, visible street crimes such as robbery may be reported more often because victims seek police assistance quickly.

Three main sources are used to study crime:

Official crime statistics from police or courts
Victimisation surveys where people report whether they have been victimised
Self-report studies where individuals admit their own offending anonymously

Each source has strengths and weaknesses. Official statistics help identify trends in recorded crime, but they reflect enforcement patterns as much as actual offending. Victimisation surveys reveal hidden experiences, but memory, sampling, and willingness to disclose can affect accuracy. Self-report studies are useful for understanding youth offending or minor delinquency, but they may understate serious offences and rely on honest disclosure.

Why criminal behaviour matters socially

Crime is not merely a matter of individual wrongdoing. It damages communities, deepens fear, increases the cost of security, weakens trust, and may reproduce inequality. Criminal behaviour can affect:

Individuals, through injury, trauma, loss, or stigma
Families, through financial strain or emotional distress
Communities, through reduced safety and social cohesion
Businesses, through theft, fraud, or operational disruption
The state, through increased policing and correctional costs

In many South African settings, crime is experienced alongside unemployment, informal housing, overcrowding, substance abuse, and weak urban infrastructure. For that reason, criminal behaviour must be understood in relation to broader conditions of social life. A township with poor lighting, limited transport, and weak policing may offer more opportunities for street crime than a better-resourced suburb, even if people in both places are capable of offending.

Key exam point

A strong introductory definition should always distinguish between crime as a legal category and criminal behaviour as a broader social phenomenon. Examiners often look for the idea that criminology studies not only lawbreaking but also the causes, patterns, and consequences of lawbreaking. The safest formulation is that criminology is concerned with crime, criminals, victimisation, and the social reaction to crime.

2. Major Theoretical Approaches to Criminal Behaviour

Criminological theory attempts to explain why crime happens. No theory explains everything, and different theories are useful for different types of crime. In exam answers, it is not enough to name a theory; it is necessary to show what the theory argues, what assumptions it makes about human behaviour, and how it helps explain real criminal conduct. Introductory criminology usually introduces biological, psychological, sociological, and integrated perspectives.

Classical and rational choice ideas

The classical school emerged from Enlightenment thinking and is associated with thinkers such as Cesare Beccaria and Jeremy Bentham. Its core idea is that people are rational beings who weigh pleasure and pain before acting. Crime is therefore a choice made when perceived benefits outweigh perceived costs. This theory influenced modern criminal justice by emphasising proportional punishment, certainty of punishment, and deterrence.

A student should understand that classical theory does not mean everyone calculates perfectly. Rather, it assumes that human beings respond to incentives. If punishment is certain, swift, and proportionate, offending should decrease. If it is uncertain or delayed, deterrence weakens.

A modern extension is rational choice theory, which argues that offenders make decisions based on situational opportunities, expected rewards, and risk of detection. For example, a person deciding whether to steal a cellphone in a crowded taxi rank may assess crowd density, police presence, exit routes, and potential profit. The theory is useful for explaining opportunistic offences such as theft, shoplifting, and some forms of fraud.

However, classical and rational choice approaches have limitations:

Not all offenders think carefully before acting.
Emotions, intoxication, peer pressure, and habit affect decisions.
Structural factors such as poverty and social exclusion also matter.
Some crimes are impulsive or expressive rather than calculated.

Even so, these approaches remain important because they underpin prevention strategies such as CCTV, situational crime prevention, target hardening, and increased guardianship.

Biological and biosocial perspectives

Biological theories seek explanations in genetics, neurochemistry, brain functioning, hormonal influences, and temperament. Early biological criminology was often simplistic and sometimes linked to discredited ideas about physical stigmata or innate criminal types. Contemporary biosocial approaches are more careful. They do not claim that biology causes crime by itself; instead, they examine how biological traits interact with environment.

Examples of biological influences include:

Impulsivity and low self-control
Neurological deficits affecting decision-making
High sensation-seeking
Stress reactivity
Substance dependence
Genetic vulnerability interacting with adverse upbringing

A strong study note should recognise the danger of determinism. Biology may increase risk, but it does not make criminal behaviour inevitable. Many people with adverse biological or psychological traits never offend, and many offenders have no obvious biological impairment. Ethical concerns also arise because biological explanations can be misused to stigmatise individuals or groups.

Psychological perspectives

Psychological theories focus on cognition, personality, learning, moral development, and mental processes. They ask how individuals learn criminal behaviour, how they perceive rules, and how personality traits influence conduct. Important psychological themes include:

Social learning: behaviour is learned through observation, imitation, reinforcement, and punishment.
Cognitive development: moral reasoning and self-regulation affect behaviour.
Personality traits: aggression, impulsivity, callousness, and low empathy may increase risk.
Psychopathology: some offences may be associated with mental illness, though mental illness is not a general explanation for crime.

Albert Bandura’s social learning approach is especially useful because it links psychology and environment. A young person who repeatedly observes violence as a normal way to resolve conflict may internalise aggression as acceptable. If such behaviour is rewarded with status, money, or approval, it is more likely to continue. This helps explain how gangs, peer groups, and family settings may transmit violent norms.

Psychological theory also helps explain why the same opportunity does not produce the same response in different people. Two teenagers may grow up in the same neighbourhood, but one may develop discipline and prosocial goals while the other may adopt risk-taking and antisocial behaviour. Personality, attachment, coping skills, and family supervision all influence the outcome.

Sociological explanations

Sociological theories are central to criminology because they locate crime in the structure of society. They argue that crime is not just an individual failure but a product of social relationships, inequality, norms, and institutions. Several major sociological perspectives are commonly studied.

Strain theory

Strain theory suggests that crime occurs when people experience a gap between socially approved goals and the legitimate means to achieve them. If society celebrates success, wealth, and status but fails to provide equal opportunities, some individuals may adapt through innovation, retreatism, rebellion, or crime.

For example, a young person who sees consumer success as essential but lacks access to education or employment may feel pressure to obtain money through robbery, fraud, or drug dealing. In South Africa, where inequality is high and youth unemployment remains a serious concern, strain theory can be especially relevant. It does not excuse crime, but it helps explain why crime may appear more attractive in contexts of blocked opportunity.

Social disorganisation theory

This theory argues that crime is more likely in neighbourhoods with weak social institutions, residential instability, poverty, and limited collective efficacy. In such areas, informal social control is weakened. Neighbours may not know one another well, children may not be closely supervised, and criminal networks may operate more easily.

This theory is useful for explaining why some communities experience persistent violence or property crime even when individual residents are not inherently criminal. If the social environment does not support mutual trust, crime prevention becomes much harder.

Differential association and social learning

According to Edwin Sutherland, criminal behaviour is learned through interaction with others. People become delinquent when they are exposed to definitions favourable to crime more than definitions unfavourable to crime. This means that crime is socially transmitted. Modern social learning theory adds the role of imitation, reinforcement, and modelling.

A student answer can use the example of a youth gang where members learn how to steal cars, avoid police, and justify violence. Criminal behaviour here is not random; it is taught, shared, and normalised.

Control theory

Control theory asks not why people commit crime, but why they obey the law. The answer is that people are restrained by bonds to family, school, work, and society. Strong attachments, commitment to goals, involvement in conventional activities, and belief in the law reduce offending.

When these bonds are weak, crime becomes more likely. This is helpful for understanding juvenile delinquency, absenteeism from school, and repeated offending in unstable family environments. It also explains why rehabilitation efforts often focus on strengthening prosocial ties.

Critical perspectives

Critical criminology argues that crime cannot be understood apart from power, inequality, and social control. Laws are not neutral; they reflect political interests. Some harmful acts committed by the powerful receive less attention than offences committed by the poor. This perspective is especially important in a South African context because apartheid history, economic inequality, and unequal access to justice continue to shape patterns of crime and punishment.

Critical approaches ask questions such as:

Who defines certain acts as criminal?
Whose interests are protected by criminal law?
Why are some offences heavily policed while others are under-enforced?
How do class, race, gender, and power shape criminal justice outcomes?

This does not mean that all laws are illegitimate. It means that criminology must examine the distribution of power behind lawmaking and enforcement.

Integrating theory for exams

Many exam questions ask students to compare theories or apply them to a case. A strong answer should not force one theory to do all the work. Instead, it can show how multiple explanations operate together. For example, a robbery might be explained by strain from unemployment, social learning from peers, rational choice about target selection, and weak guardianship in a particular area. This integrated approach is often stronger than a single-factor explanation.

3. Individual, Social, and Environmental Factors Linked to Criminal Behaviour

Criminal behaviour develops through the interaction of personal traits, family experiences, peer influence, social context, and environmental opportunities. Introductory criminology usually expects students to understand these levels of explanation as connected rather than separate. A person does not offend in a vacuum. Behaviour emerges in a setting of meanings, pressures, habits, and opportunities.

Individual factors

Individual factors include age, temperament, self-control, intelligence, attitudes, emotional regulation, substance use, and personal history. These factors matter because people vary in how they respond to frustration, temptation, and authority.

Age is one of the strongest correlates of crime. Offending tends to rise in adolescence and early adulthood, then decline with age. This is often called the age-crime curve. The peak is usually associated with risk-taking, peer influence, identity formation, and limited long-term responsibility. However, not all crime follows exactly the same pattern. Some property offences and violent offences are more concentrated among younger people, while white-collar offences may occur later in life when individuals occupy positions of trust and opportunity.

Self-control is another central concept. Individuals with low self-control may be impulsive, short-sighted, thrill-seeking, and insensitive to consequences. This does not mean they are permanently criminal. It means they may be more vulnerable to opportunities for immediate gratification. Poor parenting, inconsistent discipline, and neglect can contribute to low self-control, but so can broader social factors.

Substance abuse can intensify criminal behaviour in several ways:

It lowers inhibition and increases aggression
It creates economic pressure to fund dependency
It exposes people to criminal networks
It may worsen family conflict and instability

Yet substance use does not automatically cause crime. Many users never become offenders, and many offenders do not use drugs. The relationship is complex and bidirectional.

Family factors

Family is one of the earliest and most influential environments in which norms are learned. Parenting quality, supervision, attachment, discipline, abuse, neglect, and family conflict all influence later behaviour. The family can protect against offending when it provides structure, emotional support, and moral guidance. It can also increase risk when it is violent, chaotic, absent, or inconsistent.

Important family-related risks include:

Weak parental monitoring
Harsh or inconsistent discipline
Exposure to domestic violence
Parental substance abuse
Criminal role models in the home
Neglect and emotional deprivation

A child who grows up seeing violence as normal may internalise aggression as a conflict-resolution strategy. A child who receives no supervision may spend more time in unsupervised peer groups where delinquent norms spread easily. Family risk factors do not determine destiny, but they significantly shape developmental pathways.

Peer influence

Peers become increasingly important during adolescence. Young people seek belonging, identity, and respect. If peer groups reward status through rule-breaking, offending can become part of social acceptance. Peer pressure is often not direct command; it may be subtle, such as laughter, approval, or fear of exclusion.

Peer influence is especially important in:

Theft and shoplifting
Gangs
Drug use
School-related delinquency
Group violence

Criminological theory shows that peers can operate through learning and reinforcement. A youth who participates in a group assault may later receive praise for bravery. That praise strengthens the behaviour. Over time, criminal conduct may become part of identity, not just a one-time act.

School and education

Schools can protect against offending through structure, discipline, achievement, and positive attachment. They can also contribute to delinquency when students feel alienated, humiliated, excluded, or unsupported. Truancy, repeated failure, and conflict with teachers are associated with later offending. A weak connection to school reduces commitment to conventional goals and increases unstructured time.

Educational disadvantage is particularly significant in unequal societies. If young people experience school as irrelevant or inaccessible, the opportunity costs of offending may appear lower. In such settings, crime can become a rational or socially learned alternative path.

Community and neighbourhood conditions

Neighbourhoods shape behaviour through both opportunity and social control. Poor lighting, abandoned buildings, overcrowded transport systems, weak informal networks, and limited police presence can increase crime opportunities. Communities with high turnover may lack trust and shared norms, making collective action against crime difficult.

The following environmental features are strongly associated with crime risk:

Poverty concentration
Unemployment
Residential instability
Weak community cohesion
High availability of alcohol outlets
Poor urban design
Inadequate public transport safety
Easy access to weapons

In South African cities, urban form matters. Long travel distances, informal settlements, poorly lit pathways, and crowded transport nodes can create conditions in which robbery, assault, and sexual violence are more likely. Environmental criminology therefore examines not only who offends but where and when crime occurs.

Opportunity and routine activity

Routine activity theory explains crime as the result of three elements converging:

A motivated offender
A suitable target
Absence of a capable guardian

This theory is powerful because it focuses on everyday patterns. Crime increases when people leave homes unattended, use visible smartphones in public, park cars in isolated areas, or travel through unsafe routes without protection. Opportunity matters greatly. A person may be motivated but unable to offend if guardianship is strong. Similarly, a target may be attractive but not accessible.

This theory helps explain many urban crimes:

Housebreaking when homes are empty
Street robbery around taxi ranks
Vehicle theft in poorly secured parking areas
Cyber fraud when users are careless with passwords and links

It is one of the most practically useful theories for prevention because it suggests direct interventions such as improved lighting, alarm systems, surveillance, access control, and community vigilance.

Social inequality and structural conditions

Criminal behaviour is also shaped by structural inequality. When some groups have persistent access to quality education, employment, safety, and political influence while others face exclusion, frustration and illegitimacy may grow. Inequality affects not only material conditions but also perceptions of fairness. People who believe the system is unjust may have weaker commitment to legal norms.

This is especially relevant in South Africa, where the legacies of apartheid continue to influence housing, education, spatial segregation, and economic opportunity. Criminology must therefore treat crime as part of a wider social order rather than a simple matter of bad individuals.

Gender and criminal behaviour

Gender is another important dimension. Men commit a larger share of recorded violent crime, while women are more often victims of intimate partner violence, sexual violence, and economic exploitation. Explanations for gender differences include socialisation, masculinity norms, opportunity structures, and power relations.

Some male offending is linked to expectations of dominance, toughness, and willingness to use force. In certain peer groups, violence may be treated as proof of masculinity. This does not mean masculinity causes crime on its own, but it shows how gender roles can shape behavioural patterns.

Women’s offending is often under-studied in introductory texts. Yet women may be involved in theft, fraud, drug-related offences, or survival-based offending under conditions of poverty, coercion, or victimisation. A balanced study approach should avoid stereotypes and recognise that gendered pathways into crime differ.

4. Types and Patterns of Criminal Behaviour

Criminal behaviour is not a single category. Different offences reflect different motives, opportunities, social contexts, and criminal justice responses. Understanding the main types of crime helps students analyse specific exam scenarios and identify how theory applies in practice. Introductory criminology usually distinguishes between violent, property, public-order, organised, white-collar, and cybercrime, while also noting that many offenders move between categories over time.

Violent crime

Violent crime includes offences that use force or the threat of force against persons. Common examples are murder, assault, rape, robbery, and domestic violence. Violent offending often creates fear beyond the immediate victim because it signals danger in public or private spaces.

Violence may be:

Instrumental, where force is used to achieve another goal such as money or status
Expressive, where force arises from anger, revenge, jealousy, or emotional loss

This distinction matters. A robbery committed for money is instrumentally violent. A fight escalating after humiliation may be expressive. Both are criminal, but the causes and prevention strategies may differ.

In South African settings, violent crime often intersects with alcohol, weapons, crowded public spaces, and conflict in intimate or communal relationships. Gang-related violence, taxi violence, and domestic violence may have different immediate triggers but share deeper conditions such as inequality, weak social control, and normalisation of aggression.

Property crime

Property crime involves unlawful taking, damage, or interference with property. It includes theft, burglary, housebreaking, motor vehicle theft, shoplifting, vandalism, and fraud-related property loss. Many property crimes are opportunistic and can be explained by routine activity theory and rational choice. Offenders select targets that are visible, valuable, and unprotected.

Property crimes are often influenced by:

Economic need
Easy opportunity
Poor security
Peer learning
Drug dependency
Desire for status goods

Although property crime may appear less serious than violent crime, it can severely affect victims, especially where losses are repeated or insurance is unavailable. Small business owners, informal traders, and low-income households may be disproportionately affected because they have fewer resources to absorb losses.

Sexual offences and gendered violence

Sexual offences are among the most harmful crimes because they violate bodily autonomy, dignity, and safety. In many contexts they are also underreported due to shame, fear of retaliation, stigma, or distrust of authorities. Criminology treats sexual offences as a serious subject requiring attention to power, gender inequality, opportunity, and offender-victim dynamics.

Sexual violence may be linked to:

Power and domination
Misogynistic attitudes
Peer reinforcement
Alcohol use
Lack of guardianship
Previous victimisation or exposure to violence

A strong study response should avoid simplistic claims that sexual offences are caused by desire alone. More often they involve control, entitlement, aggression, and dehumanisation. Prevention requires more than punishment; it includes survivor support, institutional accountability, education, and environmental safety.

Organised crime

Organised crime refers to structured, ongoing criminal activity carried out by groups for profit. This includes drug trafficking, smuggling, extortion, trafficking in persons, illegal mining facilitation, and large-scale corruption networks. Organised crime is distinguished by planning, division of labour, corruption of officials, and continuity over time.

Organised crime often thrives where:

State capacity is weak
Corruption is present
High profits can be made
Enforcement is inconsistent
Transnational routes exist

In South Africa, organised crime can intersect with transport routes, ports, public procurement, mining, and cross-border movement. It is not only a street-level issue but also a governance problem. Studying organised crime helps students understand how criminal behaviour can be embedded in business, logistics, and political systems.

White-collar and corporate crime

White-collar crime refers to offences committed by people in positions of trust, typically in occupational or professional settings. Examples include fraud, embezzlement, insider trading, tax evasion, bribery, and procurement corruption. Corporate crime refers to illegal or harmful acts committed by companies or on behalf of companies.

These offences are often less visible than street crime but can cause enormous harm. A public procurement scam may deprive thousands of people of essential services. Fraud can undermine institutions and erode public confidence. Because the offenders are often respected or powerful, these crimes may be under-policed or difficult to prosecute.

A study guide should emphasise that criminology does not focus only on poor or marginalised offenders. Harm can also be produced by institutions and elites.

Cybercrime

Cybercrime includes offences committed through computers, networks, and digital systems. Common examples are phishing, identity theft, ransomware, online fraud, unauthorised access, and digital harassment. Cybercrime is a fast-growing area because digital dependence creates new opportunities and vulnerabilities.

Key features of cybercrime:

Low physical risk to offenders
Cross-border complexity
Rapid adaptation by criminals
Difficult investigation and attribution
High potential for scale

Cybercrime fits well with opportunity-based theories because offenders exploit weak passwords, untrained users, insecure networks, and social engineering. It also demonstrates that criminal behaviour evolves with technology. A traditional criminology course must therefore keep pace with digital forms of offending.

Juvenile delinquency

Juvenile delinquency refers to lawbreaking by minors. It is often studied separately because young people are in a stage of development where impulsivity, peer influence, and identity formation are especially strong. Delinquent acts may include truancy, vandalism, theft, substance use, fighting, and gang involvement.

Delinquency is important for two reasons:

It can be a predictor of later offending.
It is often responsive to intervention.

This means that early prevention, family support, school engagement, and restorative approaches can make a major difference. Not every delinquent youth becomes a chronic offender. In fact, many adolescents desist from crime as they mature, form stable relationships, or enter employment. This is why criminology must avoid deterministic labelling.

Patterns and concentration of crime

Crime is not evenly distributed. It is concentrated in particular:

Times of day
Days of the week
Seasons
Locations
Social groups

For example, public violence may rise during late-night weekend hours when alcohol consumption is high and guardianship is reduced. Theft may concentrate in transport hubs, entertainment districts, and poorly secured residential areas. Understanding patterns helps with prevention. If the same place repeatedly experiences crime, the issue may be environmental rather than purely individual.

The following table gives a simplified overview:

Crime type	Typical motive	Common setting	Main theoretical link
Violent crime	Anger, control, status, gain	Homes, streets, nightlife venues	Social learning, strain, control
Property crime	Gain, need, opportunity	Shops, homes, vehicles	Rational choice, routine activity
Sexual offences	Power, domination, entitlement	Private spaces, transport, institutions	Gender theory, power, learning
Organised crime	Profit, market control	Networks, borders, industries	Rational choice, critical criminology
White-collar crime	Gain, concealment, privilege	Offices, firms, state contracts	Opportunity, strain, critical theory
Cybercrime	Profit, anonymity, access	Digital environments	Routine activity, rational choice

5. Prevention, Criminal Justice Responses, and Exam Revision Strategy

Criminal behaviour cannot be understood fully unless its control and prevention are also examined. Criminology asks not only what causes crime, but what responses are effective, fair, and socially sustainable. At the University of Johannesburg level, introductory study often expects students to connect theory with policy, especially in the South African criminal justice environment. Prevention works best when it is matched to the cause of the problem rather than applied in a one-size-fits-all way.

Levels of prevention

Crime prevention is often divided into primary, secondary, and tertiary prevention.

Primary prevention

Primary prevention aims to stop crime before it starts by addressing broad social conditions. Examples include:

Improved schooling
Youth employment initiatives
Better housing and urban design
Poverty reduction
Community development
Alcohol regulation
Violence prevention education

Primary prevention is long-term and structural. It targets the root conditions that make offending more likely. It is often expensive and slow to show results, but it can have the widest impact.

Secondary prevention

Secondary prevention targets individuals or places at high risk. Examples include:

Intervention with at-risk youth
School-based counselling
Hotspot policing
Targeted patrols
Family support services
Mentoring programmes

This level uses risk assessment and focused intervention. It is more immediate than primary prevention and usually less broad.

Tertiary prevention

Tertiary prevention deals with offenders after crime has occurred. It includes:

Rehabilitation
Probation and parole supervision
Restorative justice
Prison-based programmes
Substance treatment
Reintegration support

The goal is to reduce reoffending and minimise harm after offending has already taken place.

Situational crime prevention

Situational crime prevention focuses on reducing opportunities for crime by increasing effort, increasing risk, reducing rewards, reducing provocations, and removing excuses. It is highly practical and often used in urban security planning.

Examples include:

CCTV cameras
Better street lighting
Access control
Vehicle immobilisers
Alarm systems
Secure building design
Strong password practices online
Community watch initiatives

This approach is effective for many property and opportunity-based crimes. However, it has limitations. It may displace crime to nearby areas, and it does not solve deeper social causes. Still, for exam purposes, it is important to know that crime prevention is not only about punishment.

Policing and criminal justice responses

Policing is the most visible state response to criminal behaviour. Effective policing should balance law enforcement, prevention, legitimacy, and community trust. If communities distrust the police, reporting drops and cooperation weakens. If police act arbitrarily or corruptly, the legitimacy of the entire justice system suffers.

Criminal justice responses usually include:

Reporting and investigation
Arrest and charging
Bail and pre-trial processes
Trial and conviction
Sentencing
Corrections and supervision
Reintegration

Each stage can affect whether criminal behaviour is reduced or reproduced. Overcrowded prisons, weak rehabilitation, and poor reintegration may reinforce offending rather than prevent it. This is why criminology often critiques overly punitive approaches that rely on incarceration alone.

Rehabilitation and reintegration

Rehabilitation seeks to change offending behaviour by addressing its causes. This may involve education, vocational training, cognitive behavioural therapy, substance treatment, anger management, and family intervention. Reintegration helps offenders return to society with support and reduced stigma.

Rehabilitation is based on the understanding that criminal behaviour is not always fixed. People can change when they gain skills, stable relationships, and legitimate opportunities. This is particularly important for young offenders, whose identities are still forming. A purely punitive approach may harden criminal identities, especially when offenders are labelled as irredeemable.

Restorative justice

Restorative justice emphasizes repairing harm rather than only punishing wrongdoing. It involves offenders, victims, and communities in processes that encourage accountability, restitution, apology, and healing. It is especially useful in cases where the goal is not only punishment but also relationship repair and long-term reintegration.

Restorative approaches can be effective for certain offences, but they are not suitable for all cases. Serious violence, coercive abuse, and repeat predatory offending may require stronger protective measures. A balanced exam answer should recognise both the strengths and limits of restorative justice.

Ethics, human rights, and fairness

Responses to crime must respect constitutional values, human dignity, due process, and equality. If crime control becomes abusive, discriminatory, or corrupt, it can produce more harm than the original offence. Over-policing of poor communities, racial profiling, prison abuse, and arbitrary detention can undermine justice.

This matters especially in South Africa, where historical injustice shapes current debates about authority and legitimacy. A criminology student should therefore understand that effective crime control is not simply about harshness. It must also be lawful, fair, evidence-based, and proportionate.

How to answer exam questions well

Introductory criminology questions often ask you to define, explain, compare, or apply concepts. Good exam technique includes the following:

Define the key term clearly
Start with a precise definition of criminal behaviour, criminology, or the theory in question.
Explain the main points systematically
Use logical paragraphs with topic sentences.
Link theory to example
Apply the concept to a South African or real-world situation.
Compare where necessary
If asked to compare theories, show similarities and differences.
Conclude with significance
State why the concept matters for understanding crime or prevention.

Common exam themes and revision focus

Students should be prepared to answer questions on:

Definitions of criminology and criminal behaviour
The difference between crime and deviance
Classical, biological, psychological, and sociological theories
The role of family, peers, school, and community
Routine activity and opportunity theories
Types of crime, including violent, property, organised, white-collar, and cybercrime
Crime prevention strategies
The dark figure of crime
The role of the criminal justice system
South African crime patterns and social context

High-value revision summary

The most important idea in introductory criminology is that criminal behaviour is multi-causal. It emerges from the interaction of individual choice, learning, opportunity, social structure, and state response. No single theory explains every case. Classical theory helps explain calculation and deterrence; psychological theories help explain learning and self-regulation; sociological theories help explain inequality, social disorganisation, and peer influence; and opportunity theories help explain why crime occurs in particular places and moments.

A concise way to remember the subject is this:

Crime is defined by law
Criminal behaviour is shaped by context
Crime is measured imperfectly
Theories explain different dimensions
Prevention must match the cause
Justice must be effective and fair

A well-prepared UJ criminology student should be able to move confidently from definition to theory to example to policy. That sequence shows not only memory, but real criminological understanding.

Final revision table

Concept	Core idea	Why it matters
Criminology	Study of crime and responses	Frames the whole subject
Criminal behaviour	Lawbreaking conduct	Basis for analysis
Dark figure of crime	Unreported crime	Shows limits of official data
Classical theory	Rational choice and deterrence	Supports prevention through certainty of punishment
Strain theory	Blocked goals create pressure	Helps explain offending under inequality
Social learning	Crime is learned from others	Explains peer and gang influence
Routine activity	Crime occurs when opportunity exists	Useful for practical prevention
Rehabilitation	Behaviour change and reintegration	Reduces reoffending
Restorative justice	Repairing harm and accountability	Strengthens healing and community involvement

Criminal behaviour remains one of the most important subjects in criminology because it reveals the relationship between personal decisions and social conditions. The best exam answers show that understanding crime requires more than naming offenders or offences. It requires careful thinking about causes, patterns, control, and justice in a complex society.