(1) The chief officer of either a law enforcement agency or an intelligence agency must cause the records kept under section 15LF for each authority in respect of the agency to be audited:
(a) at least once every 6 months while the authority is in force; and
(b) at least once in the 6 months after the cancellation or expiry of the authority.
(2) The audit is to be conducted by a person appointed by the chief officer.
(3) The person appointed to conduct the audit:
(a) may, but need not be, an officer of the agency; and
(b) must not be a person:
(i) who granted, varied or cancelled any of the authorities to which the records under section 15LF relate; or
(ii) to whom control of any of the authorities to which the records under section 15LF relate was transferred; or
(iii) who is or was an authorised person under any of the authorities to which those records relate.
(4) The results of an audit must be reported to the chief officer.