155   Offences by persons other than principal offenders

(1)  A person who:

(a)  aids, abets, counsels or procures a person to contravene, or

(b)  induces, or attempts to induce, a person, whether by threats or promises or otherwise, to contravene, or

(c)  is in any way, directly or indirectly, knowingly concerned in, or party to, the contravention by a person of, or

(d)  conspires with others to contravene,

      a provision of this Act or the regulations is guilty of an offence against this Act or the regulations and liable to the same penalty as a person who contravenes the provision.

(2)  A person does not commit an offence because of this section for any act or omission that is an offence under section 160.