The ModernEncyclopedia Est. 2026 · A living curriculum · Regularly updated
CRM-22 · Social Sciences · Living entry

Learn Criminology with any AI

Crime, justice & punishment

Criminology is the study of crime, its causes, and how society responds — through policing, courts, punishment and prevention. It sits between sociology, psychology and law, and it asks uncomfortable questions from the start: what counts as "crime," and who gets to decide?

Studied honestly, it replaces easy assumptions about crime and punishment with evidence and hard trade-offs. Set your level below.

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CRM-22 · Criminology
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§02

A map of Criminology

Crime, justice and punishment

The field's main areas.

  • Theories of crime — the competing explanations for why crime happens.
  • Policing & criminal justice — how societies detect, try and process crime.
  • Penology & prisons — the theory and reality of punishment.
  • Youth justice — handling crime and young people.
  • Cybercrime — offending in the digital age.
  • Victimology — the study of those harmed, long neglected.
§03

The canon

The thinkers who shaped the field

Real figures — including one important cautionary tale.

  • Cesare BeccariaOn Crimes and Punishments (1764), the case for rational, proportionate, humane justice.
  • Cesare Lombroso — the "born criminal" theory: enormously influential, thoroughly discredited, and worth knowing as a warning about pseudoscience.
  • Émile Durkheim — the startling argument that crime is normal, and even serves a social function.
  • Robert Merton — strain theory: crime as the gap between society's goals and its opportunities.
  • Howard Becker — labelling theory: deviance as something society applies, not just something people do.
  • Michel FoucaultDiscipline and Punish, the unsettling history of the prison and modern control.
§04

The live debates

The hard questions

Real, uncomfortable debates.

  • What causes crime? Biology, environment, rational choice, or the labels society hands out — the theories genuinely conflict.
  • Does prison work? Rehabilitation, punishment and deterrence pull in different directions.
  • Who defines crime? And whose offences get policed and punished, and whose don't.
  • The ethics of prediction. Profiling and "predictive policing," and the bias they can bake in.
  • Restorative vs retributive justice. Repairing harm, or exacting it.
§05

Where to start

A route in

A route in — everything runs from the panel above.

  1. Run Orientation on the main theories of crime.
  2. Use Great Debates on "does prison work" — the evidence surprises most people.
  3. Apply it with Real-World Applications to a current justice issue.
  4. Read Beccaria or Foucault in excerpt alongside a modern criminology text.

Start by questioning the word itself: "crime" is a category society draws — and it could always draw it differently.