(1)  The Chief Psychiatrist or the controlling authority of an SMHU may authorise a person, or a member of a class of persons, for the purposes of –

(a) section 64 ; or

(b) any or all of the provisions of this Part; or

(c) any or all of the provisions of Part 4 ; or

(d) any or all of the provisions of Part 3 of Chapter 4 ; or

(e) any or all of the provisions of Schedule 2  –

as specified in the authorisation.

(2)  A reference in a provision of this Act to an authorised person is a reference to a person who is authorised under subsection (1) for the purposes of that provision or the Part containing the provision.