111. The period of continuance in force of an agreement The agreement shall provide for the period of its continuance in force; provided that it shall not exceed three years unless the agreement deals with fixing of wages and working hours in which case such period may extend to a period not exceeding five years. 112. Reference of the dispute to Arbitration If the competent authority becomes unable to settle a dispute amicably within the period referred to in section 109 it shall refer the dispute to an arbitration tribunal without the approval of the parties to the dispute; for determination whenever it deems it necessary. 113. Constitution of the Arbitration Tribunal (1) The competent authority shall, by a decision made by him, constitute an arbitration tribunal as follows: (a) A judge whose grade is not less than Province judge, to be nominated by the Chief Justice in the state as Chairman; (b) In case of private sector an employer who has no connection with the dispute to be nominated by the employer; in case of public sector a representative of Minster of finances as Member; (c) a representative of a trade union which has no direct connection with the subject of the dispute to be nominated by the trade union party to the dispute as member; (d) a representative of the Ministry of Manpower as member; (e) a person experienced in industrial relations as member . (2) Subject to subsection (1) and in cases where any public institution and corporation in which the government own more than 50% of its shares party to a trade dispute concerning the conditions of service of workers, the Minister of Finance appoints a representative in arbitration tribunal and in cases of federal public institution and corporation the competent governor appoints a representative for him in arbitration tribunal 114. The first session of the Arbitration tribunal and quorum (1) The Chairman of an arbitration tribunal shall, within a period not exceeding one week from the date of reference of the dispute to arbitration, fix a date for hearing thereof. (2) Presence of four members including the Chairman shall constitute a quorum of an arbitration tribunal. 115. The period for settlement of a dispute An arbitration tribunal shall consider and decide a dispute referred thereto within a period not exceeding four weeks after the date of reference to arbitration and the Chairman of an arbitration tribunal may require the competent authority to extent the period for settlement of a dispute not exceeding four weeks 116. Powers of the Arbitration Tribunal An arbitration tribunal shall have powers to summon witnesses, administer an oath to them, compel them to produce documents and books which it deems necessary to pursue, summon experts, move to the places of work and to take all necessary measures which enable it to determine the dispute without adhering to the means of proof applicable in the civil courts. 117. Appearance of Advocates and consultants A party to a dispute may engage an advocate to represent him before an arbitration tribunal. 118. The laws to be applied by Arbitration Tribunal An arbitration tribunal shall apply the laws in force, and may in so doing resort to custom and the principles of equity in accordance with the general economic and social conditions in the area. 119. Award 28