Police allege Mr Gao was murdered in a storage unit in the Sydney suburb of Padstow in May 2014.Former police detectives Roger Rogerson and Glen McNamara have been committed to stand trial over the death of Sydney student Jamie Gao.
It is alleged the 20-year-old was involved in a drug deal with Rogerson and McNamara that went sour.
Mr Gao's body was found floating in the water off Cronulla Beach.
Rogerson and McNamara appeared at Sydney's Central Local Court via video link on Thursday, sitting next to each other in prison greens.
They were committed to stand trial in the Supreme Court on March 6.
Bail was formally refused.
Rogerson's lawyer Paul Kenny told reporters outside court his client wanted the matter dealt with as quickly as possible.
"He just wants to get to trial as soon as possible. I think it's in the interests of justice to do things as quickly as we can," he said.
"I think you'll find in many respects, there might not be too much dispute in relation to the police case. So we're anxious to get to trial as soon as possible."
Mr Kenny added that Rogerson was "not in the best of health".
"He's doing the best he can, but he's being treated very well by Corrective Services, they're looking after all his medical needs," he said.