A detective-in-training with the Middle Eastern Organised Crime Squad, Mr Crews was shot in the head during a siege in Bankstown.

The 26-year-old was involved in a raid on an apartment building on Cairds Avenue, Bankstown, about 9pm. Officers were executing a search warrant for drugs when a number of shots were fired.

A group of people inside the building opened fire and Mr Crews was shot, sources said.

Five people were initially arrested, while police had to negotiate the surrender of another three suspects. They were all taken to Bankstown police station for questioning.

The 26-year-old was to be a best man at a wedding this weekend near Lismore.

For a full report, see The Examiner on Tuesday.