112When public or other authority not liable for failure to

112 When public or other authority not liable for failure to exercise regulatory functions (1) A public or other authority is not liable in a proceeding so far as the claim in the proceeding is based on the failure of the authority to exercise, or to consider exercising, a function of the authority to prohibit or regulate an activity if the authority could not have been required to exercise the function in a proceeding begun by the claimant. (2) Without limiting what is a function to regulate an activity for this section, a function to issue a licence, permit or other authority in relation to an activity, or to register or otherwise authorise a person in relation to an activity, is a function to regulate the activity.