Now in its 3rd edition, The Crime Investigators Handbook provides straightforward, practical information and advice for crime investigators. The book complements the learning outcomes from the Initial Crime Investigators Development Programme (ICIDP) Phases 2 and 3, as well as all Professionalising Investigations Programme (PIP) Level 2 investigations and provides practical operational advice for a variety of crime types that investigators and supervisors can expect to encounter. The 3rd edition covers changes to legislative and professional practices such as the Domestic Abuse Act 2021, Achieving Best Evidence 2022, amendments to the Police and Criminal Evidence Act 1984 and Codes of Practice, the Code of Practice for Victims of Crime 2021, and the Criminal Procedure Rules and Practice Directions 2020, which consolidates the Criminal Procedure Rules 2015 and subsequent amendments. This edition also covers new and emerging crime types, such as cyber crime, honour based violence and abuse, child sexual exploitation, modern slavery, and stalking and harassment.