Exploring Forensic Psychology for AQA A Level

Defining and Measuring Crime

Ever wondered what actually counts as a crime? At its simplest, crime is any act that breaks the law and warrants punishment. But it's far more complex than that.

Crime is a socially dynamic construct that changes across time and cultures. While some behaviours like murder are universally condemned, others shift dramatically. What was acceptable parenting decades ago (like physical discipline) might be considered abusive today. Similarly, practices like polygamy are criminal in some societies but perfectly legal in others.

Measuring crime accurately proves challenging. Official statistics from police records provide one perspective, but they suffer from significant validity issues. Many crimes go unreported or unrecorded—domestic violence against men, for instance, is notoriously underreported. Reliability problems also emerge when different police forces record crimes differently (some won't document thefts under £10).

Did you know? The Crime Survey for England and Wales randomly selects 50,000 households to gather information about victimisation, often revealing incidents never reported to police.

Alternative measurement approaches include victim surveys and offender surveys. While victim surveys typically show higher validity than official statistics, they face problems with "telescoping" (people misremembering when crimes occurred). Offender surveys struggle with validity as criminals may be reluctant to truthfully report their activities or may simply forget details of past offences.

Offender Profiling Techniques

Imagine helping solve a murder by creating a psychological snapshot of the killer. That's offender profiling—a technique used to narrow down suspect lists by analysing crime scenes to predict offender characteristics.

The top-down FBI approach developed in the 1970s categorises offenders as either organised or disorganised based on crime scene evidence. Organised offenders plan meticulously, target specific victims, maintain control during the crime, leave little evidence, and typically possess above-average intelligence with stable lives. Disorganised offenders act impulsively, leave chaotic crime scenes with bodies still present, tend toward lower intelligence, and often live alone near the crime scene.

The FBI profile creation follows four key stages:

1. Data assimilation (reviewing evidence)
2. Crime scene classification
3. Crime reconstruction
4. Profile generation

The bottom-up UK approach, pioneered by David Canter, starts with small details to build the bigger picture without preconceived templates. It relies heavily on geographical profiling—studying spatial behaviours related to crime. This approach examines the locations of crimes, believing they reveal important information about where offenders live, work, and socialise.

Remember this: The bottom-up approach has wider application beyond sexually motivated serial killings, while the top-down approach works best for specific crime types that reveal significant psychological details.

Canter famously applied his techniques to catch John Duffy, the "Railway Rapist," who attacked women near London railway stations in the 1980s. Research by Lundrigan & Canter analysed 120 murder cases and found that killers' homes were typically located at the centre of their crime patterns.

Biological Explanations of Criminal Behaviour

Have you ever wondered if criminals are born different? The earliest biological explanation came from Cesare Lombroso in 1876, who proposed the atavistic form theory. He claimed criminals were "genetic throwbacks" with distinct physical characteristics setting them apart from non-criminals.

After examining hundreds of Italian convicts, Lombroso concluded criminals possessed specific facial and cranial features like narrow sloping brows, strong jaws, and facial asymmetry. He even categorised criminals by appearance: murderers had bloodshot eyes and curly hair, while fraudsters had thin lips.

Though Lombroso's specific ideas were disproven by Charles Goring's 1913 comparison study of 3000 offenders and non-offenders, his work moved criminology from moral judgments toward scientific study.

Modern genetic explanations offer more sophisticated insights. Twin studies by Lange found that identical twins were far more likely to share criminal behaviour than fraternal twins. Adoption studies by Crowe revealed adopted children with criminal biological parents had a 50% chance of developing criminal records by age 18, compared to just 5% for those without criminal biological parents.

Important insight: The diathesis-stress model suggests criminal behaviour results from a genetic predisposition combined with environmental triggers—neither nature nor nurture alone explains criminal behaviour.

Recent research has identified specific neural explanations for criminal behaviour. Brain scans by Raine found an 11% reduction in prefrontal cortex grey matter in people with antisocial personality disorder, making impulse control difficult. Similarly, Keysers discovered that criminals' empathy-related mirror neurons don't activate automatically like in non-criminals but can be switched on voluntarily.

Psychological Theories of Criminal Behaviour

Psychological theories offer crucial insights into why people commit crimes beyond biological factors. These explanations focus on personality, cognitive processes, and learning.

Eysenck's theory of criminal personality proposes that certain personality traits make criminal behaviour more likely. Eysenck identified three key dimensions: extroversion (seeking excitement due to an underactive nervous system), neuroticism (emotional instability), and psychoticism (aggressiveness and lack of empathy). He believed these traits have biological foundations but link to crime through socialisation processes. People scoring high on these dimensions struggle with delayed gratification and learning appropriate social behaviour.

Research by Hans and Sybil Eysenck (1977) supported this theory by demonstrating that prisoners scored higher on all three personality dimensions across all age groups compared to non-criminals.

Cognitive explanations focus on thinking patterns. Kohlberg applied his stages of moral reasoning to criminal behaviour, suggesting that offenders remain at lower, more self-centred stages of moral development. Palmer and Hollin's research confirmed that offenders showed less mature moral reasoning than non-offenders.

Think about this: Your moral development impacts how you make decisions about right and wrong. Most criminals operate at pre-conventional levels (avoiding punishment, seeking rewards) rather than considering society's needs or universal principles.

Cognitive distortions also play a crucial role. Criminals often display a hostile attribution bias, misinterpreting neutral actions as threatening. Schonenberg and Jusyte found violent offenders were significantly more likely to perceive ambiguous facial expressions as angry. Criminals also use minimalization to downplay their actions—Barbaree discovered that among 26 rapists, 54% completely denied their offence while 40% minimised the harm caused.

Social Learning and Psychodynamic Explanations

How do people learn to commit crimes? According to Differential Association Theory, developed by Edwin Sutherland, criminal behaviour is learned primarily through interactions with significant others.

This theory suggests we acquire both attitudes toward crime and specific techniques for committing offences from those we associate with most frequently. The likelihood of becoming a criminal depends on the balance between exposure to pro-crime versus anti-crime attitudes. This explains why prison can sometimes become a "crime school" where inmates learn new criminal techniques from each other.

Farrington's Cambridge Study in Delinquent Development followed 441 boys from age 8 into adulthood. The research found that family criminality was one of the strongest predictors of future offending—supporting the idea that criminal behaviour is learned from close associations.

The psychodynamic approach offers a completely different perspective, focusing on unconscious mental processes. Blackburn argued that criminal behaviour results from an inadequate superego (the moral component of personality). This can manifest in three ways:

1. Weak superego - When the same-gender parent is absent during development, preventing proper moral internalisation
2. Deviant superego - When the child internalises immoral values from parents
3. Over-harsh superego - When strict parenting creates excessive guilt, unconsciously driving the person to commit crimes to satisfy a need for punishment

Fascinating fact: Bowlby's famous "44 juvenile thieves" study found that 12 of 14 young thieves showing "affectionless psychopathy" (lack of guilt and empathy) had experienced prolonged separation from their mothers during infancy.

While Miroslav Goreta's analysis of 10 offenders found disturbances in superego formation in all cases, the psychodynamic approach has been criticised for providing little empirical evidence and overlooking both socialisation and genetic factors.

Custodial Sentencing and Its Effects

When someone commits a crime, prison is often society's answer. But what are we trying to achieve by locking people up, and does it actually work?

Custodial sentencing serves four main purposes: deterrence (discouraging crime through unpleasant consequences), incapacitation (protecting the public by removing dangerous individuals from society), retribution (punishment proportional to the crime), and rehabilitation (reforming offenders to function better in society).

However, prison creates significant psychological challenges for inmates. Many experience severe stress and depression, with suicide rates dramatically higher than in the general population. Institutionalisation occurs when prisoners become so accustomed to prison routines they can no longer function independently. Prisonisation refers to how inmates adopt an "inmate code" that may reward behaviours considered unacceptable outside prison walls.

A major concern is recidivism (reoffending after release). Statistics show many prisoners return to crime, raising questions about imprisonment's effectiveness. Conditions vary dramatically between facilities—Wandsworth Prison in London is notorious for overcrowding and violence, while Brixton Prison has significant drug use issues.

Consider this: Norway has Europe's lowest recidivism rate, with a penal system focused on reform rather than punishment. Their approach suggests prisons can work if rehabilitation is prioritised.

Individual differences significantly affect recidivism. Walker found habitual offenders reoffend at similar rates regardless of sentence length, while Home Office data shows younger people are twice as likely to reoffend. Many offenders enter prison with pre-existing psychological issues that remain untreated, making future offending more likely.

Rehabilitation Techniques: Behaviour Modification

How can we change criminal behaviour? Behaviour modification techniques apply psychological principles to reshape how offenders act, based on the behaviourist idea that all human behaviour is learned.

Token economy systems represent a powerful application of operant conditioning in prison settings. These programmes reinforce desirable behaviours (following rules, avoiding confrontation, maintaining orderly cells) with tokens that can be exchanged for privileges like phone calls, gym time, or extra food.

Creating an effective token economy requires breaking target behaviours into measurable components. For example, "improved interaction with other inmates" might be broken down into specific actions like "not touching another prisoner when passing." These behaviours must be clearly defined, objective, and agreed upon by both staff and inmates.

Token economies offer significant advantages. They're relatively easy to implement without requiring specialist professionals, making them cost-effective for institutions. Nearly any staff member can administer these programmes once the system is established.

Important consideration: While behaviour modification techniques can effectively change observable behaviour, they may not address the underlying causes of criminal behaviour.

However, these approaches face ethical criticisms. Moya and Achtenburg argued that behaviour modification is manipulative and dehumanising, particularly when participation is mandatory rather than optional. The removal of "privileges" like exercise or family contact raises serious ethical concerns about psychological wellbeing. Critics question whether changing behaviour through external rewards creates lasting internal change or merely temporary compliance.

Despite these concerns, behaviour modification remains widespread in correctional facilities because of its practicality and observable results.

Rehabilitation Techniques: Anger Management

For many offenders, poor anger control contributes significantly to their criminal behaviour. Anger management programmes based on cognitive behavioural therapy (CBT) help offenders recognise anger triggers and develop healthier responses.

Raymond Novaco's influential approach suggests cognitive factors trigger the emotional arousal that precedes aggressive acts. His anger management model follows three key stages:

1. Cognitive preparation - Offenders identify their personal anger triggers and learn to recognise when irrational thinking patterns are occurring
2. Skill acquisition - Participants learn techniques to manage anger through cognitive strategies (positive self-talk), behavioural approaches (effective communication), and physiological methods (relaxation/meditation)
3. Application practice - Skills are tested in controlled role-plays where the therapist deliberately "winds up" the offender to assess progress

The National Anger Management Package, developed by the England and Wales Prison Service, applies these principles in eight sessions over approximately one month. Keen's research on young offenders aged 17-21 who completed this programme showed positive outcomes, with participants reporting increased awareness of their anger issues and greater self-control.

Key insight: Anger management addresses root causes rather than just symptoms, helping offenders gain insight into why they react aggressively and giving them tools for permanent behavioural change.

A significant strength of anger management is its multi-dimensional approach that acknowledges the complex nature of offending behaviour. By addressing cognitive, emotional, and behavioural aspects simultaneously, these programmes offer more comprehensive rehabilitation than single-focus approaches.

The main limitation is cost—hiring qualified specialists to run these programmes requires significant funding that many prisons simply don't have, limiting accessibility for many offenders who could benefit.

Restorative Justice and Its Effectiveness

What if punishment isn't the only answer to crime? Restorative justice takes a different approach, focusing on rehabilitation and reconciliation between offenders and their victims. This ancient principle aims to repair harm rather than simply punish wrongdoing.

Restorative justice programmes use various techniques to bring offenders and victims together: face-to-face meetings, direct mediation (with a trained professional present), or indirect mediation (where communication passes through a mediator). These approaches encourage offenders to take responsibility for their actions while giving victims a voice in the process.

One major strength of restorative justice is its flexibility. Unlike the "one size fits all" approach of traditional sentencing, restorative programmes can be adapted to different situations and settings, including schools and hospitals. This adaptability makes them suitable for addressing various types of harm in different contexts.

However, the success of restorative justice heavily depends on the offender's genuine remorse. Some may participate merely to avoid prison or receive reduced sentences rather than from sincere desire to make amends. Similarly, victims might join with motives of revenge rather than reconciliation. Without sincere participation from both sides, outcomes may be compromised.

Consider this: Restorative justice can provide psychological closure for victims that traditional punishments cannot, but only when all participants engage with genuine intentions.

The cost of implementation presents another challenge. Emotionally charged meetings between victims and offenders require skilled mediators whose expertise comes at a price. High dropout rates further complicate matters—participants may withdraw as meeting dates approach, wasting resources already invested. These practical limitations can make restorative justice less cost-effective than traditional approaches despite its potential benefits.

Despite these challenges, restorative justice continues to gain support as a more holistic approach to addressing the harm caused by criminal behaviour.