The Arbitration Act of 1940 in Pakistan establishes the role of an arbitrator as a neutral party chosen to resolve disputes outside the court system, outlining their powers and the process for their appointment. The act details the arbitrator's authority in areas like jurisdiction, procedural decisions, evidence handling, interim measures, and cost determination. Legal cases cited demonstrate how these powers are applied in practice, emphasizing that the arbitrator's authority is limited to what the parties agree upon and relevant laws dictate.