The 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—
Those enactments are—
An 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—
If 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.
An order under this section may amend or repeal section 22 (application of the PACE orders).