Since publication of the first edition in 1996, Criminal Law by Kent Roach has become one of the best-selling and most highly-regarded titles in Irwin Law's Essentials of Canadian Law series. Professor Roach's clear and concise account of the current state of substantive criminal law and theory in Canada has become essential reading, not only in law schools, but also among judges, practitioners, and others involved in the criminal justice system. Irwin Law is pleased to announce publication of a thoroughly updated and expanded fourth edition of this most important book. The fourth edition includes a new chapter on specific offences including homicide, sexual, and terrorism offences. It includes discussion of the first two convictions under the Anti-Terrorism Act as well as recent Supreme Court of Canada judgments on criminal negligence.