Police have revealed they are still awaiting the results of gunshot residue tests and a final autopsy report as they prepare to prosecute seven people over their allegedly involvement in the death - or aftermath - of Illawarra man Daniel Merrett.
Mr Merrett, a father of seven, died when the Ford Territory he was a passenger in slammed into the fuel tanker in the early hours of May 18 at an estimated speed of about 160km/h on the Princes Highway at Albion Park Rail.
The Territory's driver Kayleen Merrett, and fellow passengers Jakaya Clulow and Thomas Johnson were seriously injured in the crash.
Police will allege the Territory was being pursued by a Toyota Corolla containing Holly Green, Darren Butler and Andrew Russell, and that the latter two fired several shots at the Territory.
The incident was allegedly sparked by an earlier confrontation between the two groups at a Cringila service station over Mr Johnson's unpaid debt to Green's brother.
Police subsequently issued warrants for the arrest of Butler, Russell and Green, with Butler and Russell wanted for murder and Green for armed robbery.
It is alleged the trio went on the run from police, with Butler accused of roping in four friends, including his girlfriend of eight weeks, Holly Powers, to assist him in avoiding capture.
Police arrested Russell, then Butler and finally Green over the space of two weeks.
They have also since arrested Powers, Matthew Ryan, Maddison Day and Mariah Powell, all of whom stand accused of helping Butler during his time on the run and are facing accessory after the fact to murder charges.
During a mention of the cases against Butler, Green and Day in Wollongong Local Court on Wednesday, police prosecutor Sergeant Tanya Pavlin said the briefs of evidence were not expected to be completed until February next year.
She confirmed detectives were still waiting for the NSW Police's forensic laboratories team to process the gunshot residue tests and get the final results of Mr Merrett's post-mortem.
Each of the cases was adjourned to November 6 to link up with the other co-accused, with all matters listed for mention that day.
Sgt Pavlin confirmed police would be able to better tell the court on that date how long it would take to serve the outstanding evidence on the respective defence legal teams.