150. Prosecution need not disprove the defences

In a prosecution or in an action made by the

Commission under section 152 against any person for an offence under section 137, it is not necessary for the prosecution or the Commission to prove the non-existence of facts or circumstances which, if existed would by virtue of sections 138, 139, 140, 141, 142, 143, 144, 145 and 146

preclude the act from constituting a contravention of subsections (2) and (3) of section 137.