In-Depth Notes on Criminology Theories

Theories of Criminology

Major Theoretical Perspectives
  • Biological, Psychological, and Sociological Explanations

    • Criminology mixes these foundational perspectives with contemporary theories that synthesize them.

    • Social Learning Theory: Combines elements from all three schools of thought.

    • Classical School: Rooted in Enlightenment ideals of free will, hedonism, and utilitarianism, not easily classified within the trio of schools.

The Importance of Theories in Criminology
  • Characteristics of a Good Theory:

    • Logical: Clear premises support conclusions.

    • Testable: Empirical validation across various contexts.

    • Parsimonious: Offers simple explanations (Occam's razor).

  • Impact on Public Policy:

    • Informed proposals on due process, punishment, rehabilitation, and crime prevention.

    • Addressing criminogenic social conditions.

Classical School of Criminology
  • Key Figures:

    • Baron de Montesquieu, Cesare Beccaria, Jeremy Bentham.

  • Emergence: Criticized pre-Classical views of criminality as possession by evil spirits.

  • Modern Examples:

    • Codification of criminal offenses, presumption of innocence, mens rea, rehabilitation-focused imprisonment.

Positivist School of Criminology
  • Associates: Cesare Lombroso, Raffaele Garofalo, Enrico Ferri.

  • Principles: Attempted to use a scientific framework to study crime influenced by genetics and evolution.

  • Contrasts with Classical School:

    • Classical: Free will, rational choices.

    • Positivist: Behavior driven by genetics and medical causes.

  • Critiques and Evolution:

    • Linked to eugenics and medical models; discounts social factors.

    • Current relevance in legal contexts with psychological assessments in court.

Nature vs. Nurture in Criminology
  • Behavioral Debate:

    • Criminal behavior is a result of both genetic predispositions and environmental influences.

  • Research Methods:

    • Twin Studies: Evaluate concordance rates of behaviors between identical and fraternal twins to assess heritability.

    • Adoption Studies: Compare environmental and biological influences on behavior.

  • Genetic Considerations:

    • Findings suggest many genes can increase the risk of violent behavior under specific environmental conditions.

    • GxE interactions play a critical role in understanding crime.

The Brain and Criminal Behavior
  • Neurotransmitters and Behavior:

    • Serotonin: Inhibitory function; low levels linked to aggression and impulsive behavior.

    • Dopamine: Associated with pleasure; imbalances may lead to aggressive acts.

    • MAOA Enzyme: Its genetic variants (MAOA-L) linked to increased risk of violent behavior, particularly in context of childhood abuse.

Psychological Theories
  • Learning Theories:

    • Classical Conditioning: Association learned from environment (Eysenck).

    • Operant Conditioning: Learning through rewards/punishments (B.F. Skinner).

    • Frustration–Aggression Hypothesis: Crime as a function of frustration when desired outcomes are blocked.

    • Social Learning Theory: Behavior learned through observation and imitation (Bandura's Bobo Doll experiment).

Sociological Perspectives
  • Emile Durkheim:

    • Viewed crime as a normal part of society; criminal actions reflect societal values or structure rather than personal pathology.

    • Developed theories around anomie and social controls.

  • Chicago School: Emphasized the social environment's role in shaping criminal behavior, linking crime to neighborhood conditions.

  • Differential Association Theory: Audited that criminal behavior is learned through interactions.

Anomie/Strain Theories
  • Merton's Strain Theory:

    • Examined disconnection between societal goals and the means for achievement leading to crime.

  • General Strain Theory:

    • Agnew's view includes various strains affecting youth leading to delinquency.

Conclusion: The Future of Criminological Theory
  • Continuous evolution with advances in genetics, technology is likely to foster new biosocial approaches.

  • Areas of growth: white-collar crime, corporate crime, cybercrime, and integrated explanations combining diverse factors.


These notes provide a comprehensive overview of the theories of criminology examined in the document, detailing their development, principles, and implications.