(1) An authorised officer may acquire or use (or both) an assumed identity if the acquisition or use (or both) are—
(a) in accordance with an authority; and
(b) in the course of duty.
(2) An authorised civilian may acquire or use (or both) an assumed identity if the acquisition or use (or both) are in accordance with—
(a) an authority; and
(b) any direction by the person's supervisor under the authority.