Blackstone's Police Investigators' Manual 2012 - Softcover

...this volume is extremely useful for lawyers use as well as for those taking the NIC police exams. (Sally Ramage, The Criminal Lawyer)

If the question is in the NIE then the answer is in the Manual (Tim Jackman, Detective Constable (Crime Trainer), West Yorkshire Police)

The Blackstone's Police Investigators' Manual 2012 is the only official study text (used alongside the Investigators' Workbook 2012) for the National Investigators' Exam (NIE), which is taken as part of Phase 1 of the Initial Crime Investigators' Development Programme. Based on the bestselling Blackstone's Police Manuals, it provides all the legal information which is relevant to the role of a trainee investigator, namely in the areas of Evidence; Property Offences; Assaults, Drugs, Firearms & Gun Crime; and Sexual Offences. Now in its fourteenth edition, this Manual is fully updated for 2012 with new case law and legislation, including the Crime and Security Act 2010, the Equality Act 2010, the Coroners and Justice Act 2009, the Policing and Crime Act 2009, and the Violent Crime Reduction Act 2006. There are also new chapters incorporating the PACE Codes of Practice with Keynote boxes, offering practical advice and examples, as well as new material on counter-terrorism legislation.