In any case whereby any statute law or ordinance made or to be made relating to any of the public revenue of the State or any of the public offices or public departments or by any official regulation in any department any oath solemn affirmation or affidavit might but for the passing of this Act be required to be taken or made by any person on the doing of any act matter or thing or for the purpose of verifying any book entry or return or for any other purpose whatsoever it shall be lawful for the Governor in Council of the said State if the Governor in Council shall so think fit to substitute a declaration to the same effect as the oath solemn affirmation or affidavit which might but for the passing of this Act be required to be taken or made and the person who might under the Act or Acts imposing the same be required to take or make such oath solemn affirmation or affidavit shall in the presence of the officer or person empowered by such Act or Acts to administer such oath solemn affirmation or affidavit make and subscribe such declaration and every such officer or person is hereby empowered and required to administer the same accordingly.