Section 73

If upon the expiration of a reasonable time after such proclamation made, or after the making of such proclamation has been prevented by force, twelve or more persons continue riotously assembled together, any person authorised to make proclamation, or any police officer, or any other person acting in aid of such person or police officer, may do all things necessary for dispersing the persons so continuing assembled, or for apprehending them or any of them, and, if any person makes resistance, may use all such force as is reasonably necessary for overcoming such resistance, and shall not be liable in any criminal or civil proceeding for having, by the use of such force, caused harm or death to any person.