2.9 From early 1999, the Department's technical adviser, HDR, and the Independent Certifier found deficiencies in JLC Ltd's designs, for example, the design to control temperature to the most stringent requirements. The Department also challenged Laser about the adequacy of JLC Ltd's design for mechanical plant used to chill water, which was essential to the air-conditioning systems and for cooling operational scientific equipment. However, unless the Department could identify a clear breach by Laser, it had, without running the risk of compromising its contractual position, no power to compel Laser and JLC Ltd to give suggestions from HDR consideration.