—(1) Except as otherwise provided in this Act or the building regulations, no person shall commence or carry out —
any building works except under the supervision of an appropriate qualified person;
the structural elements of a prescribed class of building works except under the full-time supervision of a site supervisor ; or
concreting, piling, pre-stressing, tightening of high-friction grip bolts or other critical structural works of a prescribed class of building works except under the immediate supervision of a site supervisor or qualified person.
(2) Any person who contravenes or fails to comply with subsection (1) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $50,000 or to imprisonment for a term not exceeding 12 months or to both and, in the case of a continuing offence, to a further fine not exceeding $1,000 for every day during which the offence continues after conviction.