http://www.legislation.gov.uk/ukpga/1989/11/section/3Police Officers (Central Service) Act 1989An Act to amend the enactments relating to central service on police duties.1989-07-03texttext/xmlenStatute Law Database2011-05-271996-08-22F13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .