4. In the event of any difference or dispute arising as to what wages ought to be paid, or what hours or other working conditions ought to be observed in accordance with the requirements of paragraph 1, it shall, if not otherwise disposed of, be referred by the Labour Commissioner to the Governor General who may if he or she thinks fit refer the matter to an Arbitration Tribunal in accordance with the provisions of Trade Disputes (Arbitration and Inquiry) Act. In arriving at its decision the tribunal, in the absence of any established rates and conditions in the trade or industry concerned as specified in paragraph 1, shall have regard to any agreement, custom, practice or award that may be brought to its notice relating to the wages, hours or conditions of labour of persons employed in a capacity similar to that of the persons to whom the difference or dispute relates in trade or industries carried on under similar general circumstances.