http://www.legislation.gov.uk/ukpga/2009/11/section/23Borders, Citizenship and Immigration Act 2009An Act to provide for customs functions to be exercisable by the Secretary of State, the Director of Border Revenue and officials designated by them; to make provision about the use and disclosure of customs information; to make provision for and in connection with the exercise of customs functions and functions relating to immigration, asylum or nationality; to make provision about citizenship and other nationality matters; to make further provision about immigration and asylum; and for connected purposes.texttext/xmlenStatute Law Database2026-04-27Expert Participation2026-04-01 Borders, Citizenship and Immigration Act 2009s. 54A(3A)(3B)Illegal Migration Act 2023s. 14s. 55(9)s. 68(1) Part 1 231The Secretary of State may by order provide for any provision of an enactment listed in subsection (2) that relates to investigations of offences conducted by police officers or to persons detained by the police to apply, subject to such modifications as the order may specify, in relation to—ainvestigations conducted by designated customs officials,bpersons detained by designated customs officials,cinvestigations conducted by immigration officers, ordpersons detained by immigration officers.2Those enactments are—athe Police and Criminal Evidence Act 1984 (c. 60), andbthe Police and Criminal Evidence (Northern Ireland) Order 1989 (S.I. 1989/1341 (N.I. 12)).3An order under this section may make, in relation to designated customs officials, immigration officers, the Secretary of State or the Director of Border Revenue, provision similar to that which may be made in relation to officers of Revenue and Customs or the Commissioners for Her Majesty's Revenue and Customs under—asection 114 of the Police and Criminal Evidence Act 1984, orbarticle 85 of the Police and Criminal Evidence (Northern Ireland) Order 1989.4If an order under this section provides that a function may be exercised only by a person acting with the authority of the Secretary of State or the Director of Border Revenue, a certificate of the Secretary of State or (as the case may be) the Director that the person had authority to exercise the function is conclusive evidence of that fact.5An order under this section may amend or repeal section 22 (application of the PACE orders).