http://www.legislation.gov.uk/uksi/1991/2686/signature/made
The Police and Criminal Evidence Act 1984 (Commencement No. 4) Order 1991
Local Government
King's Printer of Acts of Parliament
2011-07-04
POLICE
This Order brings into force on 29th November 1991 section 60(1)(b) of the Police and Criminal Evidence Act 1984, in the police areas specified in the Schedule to the Order, and section 60(2). The effect is to require the Secretary of State to make an order requiring the tape-recording of interviews with suspects at police stations in those police areas in accordance with the code of practice issued by him (which, by virtue of S.I. 1988/1200, came into operation on 29th July 1988).
Kenneth BakerOne of Her Majesty’s Principal Secretaries of StateHome Office