Zander on PACE has been established for more than three decades as the leading work in this important field. The book ranges widely, including not only the 500 plus pages of Professor Zander’s authoritative commentary but the full text of the statute law as repeatedly amended and of the PACE Codes of Practice. It covers equally the police powers of civilians under the Police Reform Act 2002. It deals with the related terrorism provisions and the terrorism Codes of Practice as well as the statute and case law on the right of silence. The book draws on more than 900 judicial decisions including dozens of new cases. At the end of chapters, as in previous editions, there is a Q&A section giving quick answers on common practical problems. Changes since the last edition include in particular the major revision of pre-charge bail (some 20 new pages of the statute and corresponding new pages of author’s commentary); new rules on stop and search; the Law Commission’s 2020 report on search warrants; new provisions regarding the use of body-worn cameras for recording of suspect interviews elsewhere than at police stations; new rules regarding the photographing of suspects and the retention of fingerprints in terrorism cases; and changes to Codes C and H regarding the health, hygiene and welfare needs of detainees, particularly female detainees.