The prevalence of police deviance is a much-debated statistic and one that is often rife with problems. While some researchers suggest that corruption is endemic to police culture across the globe, others argue that incidents are rare. Despite such statistical problems, incidents of police deviance do surface from time to time all over the world. Some examples in the UK involve suppression of evidence, beating of suspects, tampering with confidential evidence and perjury. This book addresses these issues and gives the reader insight into the dynamics of police enforcement.