14B.— (1) An authorised person acting in the course of his or her duties under this Act may, in accordance with this section and with the code of practice approved under section 14C for the purposes of the operation of this section, operate a mobile recording device for the purposes of—

(a) preventing, investigating, detecting or prosecuting offences under this Act, or

(b) ensuring his or her personal safety or security in preventing, investigating, detecting or prosecuting offences under this Act.

(2) The operation of a mobile recording device under subsection (1) must be necessary for, and proportionate to, the purpose for which it is operated.

(3) A mobile recording device shall be operated by an authorised person in accordance with the code of practice approved under section 14C for the purposes of the operation of this section.]