This is part of a chapter of a thesis. This section should outline the theories which explain criminality and discuss the differences between them. The paper needs to have an international or comparative criminal justice approach (not be US-centric). The subsections should include: 1) Biological Perspectives 2) Psychological Perspectives 3) Strain and Cultural Deviance Theories 4) Social Control Theory Each subsection should include a review of the original source material (not textbook material) and theories which created this body of thought, its relationship to the other theories historically, and the assumptions it makes about why people engage in crime and the best ways to rehabilitate adult offenders. All sources should be from the original theorists or from peer reviewed academic articles from the past 7 years. Content should be original and not reused.