(1)The Secretary of State may issue a code of practice relating to the performance by the Chief Constable of any of his functions.
(2)The Secretary of State may revise a code issued under subsection (1).
(3)A code of practice issued under section 39A of the Police Act 1996 (c. 16) shall have effect in relation to the Chief Constable—
(a)with any necessary modifications, and
(b)subject to the provisions of a code issued under this section.
(4)Where the Secretary of State issues or revises a code under this section he shall lay before Parliament the code or revision.
(5)But subsection (4) shall not oblige the Secretary of State to lay before Parliament anything if he thinks that its publication—
(a)would be against the interests of national security,
(b)could prejudice the prevention or detection of crime or the apprehension or prosecution of offenders, or
(c)could jeopardise a person’s safety.