Section 17 of the Principal Act is amended as follows:

(a) by inserting the following subsection before subsection (1) :

(1AA)  In this section –

authorised person means a person who is –

(a) authorised under subsection (1) ; or

(b) a member of a class of persons that is authorised under subsection (1) .

(b) by inserting in subsection (3)(a) "enable the direction to be carried out or to" after "so to" .