Section 31
Authority to act as authorised officer
(1)
The Director shall issue to any public officer appointed under section 5 a warrant authorising him to exercise the powers conferred on authorised officers under this Part.
(2)
Every such warrant shall contain —
(a)
a reference to this section;
(b)
the full name of the authorised officer; and
(c)
a reference to the powers set out in sections 33 to 36.
(3)
The production by an authorised officer of —
(a)
a warrant issued under this section; or
(b)
any evidence that he is a police officer or an officer of customs, shall, until the contrary is proved, be sufficient authority for any such authorised officer to do anything authorised by this Part.
(4)
Every person appointed under section 5 who ceases to hold office as an authorised officer shall forthwith surrender to the Director the warrant issued to him under subsection (1).
(5)
Any person who fails to comply with subsection (4) is guilty of an offence.