(1)In any case of alleged offence by the Commissioner, a Magistrate, Police Officer or Reserve Police Officer or other person, or of a wrong alleged to have been done by such Commissioner, Magistrate, Police Officer or Reserve Police Officer or other person, by any act done under colour or in excess of any such duty or authority as aforesaid, or wherein it shall appear to the court that the offence or wrong if committed or done was of the character aforesaid, the prosecution or suit shall not be entertained except with the previous sanction of the Government.