This accessible book introduces the key concepts and theoretical developments of queer criminology and explains what they mean for modern criminal justice frameworks and practitioners. The book sets out experiences of the LGBTQ+ population as victims, offenders and professionals in legal systems in the US and internationally and explores what they mean for elements of those systems including police, courts, corrections and victims’ services. It is both a useful reference point for academics, students and professionals and a guide to how queer criminology can be theoretically applied and practically implemented in the worlds of policing, courts, corrections, and victims' services.