A man accused of organising the execution-style murder of a former bikie boss in a Sydney gym car park has been denied bail.
Ahmed Doudar's lengthy criminal history, multiple parole revocations and alleged role in the murder made him a threat to public safety, a NSW Supreme Court judge said.
"Given ... his disregard of societal behavioural norms - otherwise known as the law - and his flagrant disregard of legal obligations, there is a very real risk which cannot be mitigated that he will commit further serious offences and endanger members of the public," Justice Peter Garling said on Wednesday.
The 38-year-old is charged with the daylight murder of former Comanchero bikie boss Mahmoud "Mick" Hawi, who was shot multiple times as he sat in his luxury car outside Fitness First Rockdale in February 2018.
Alleged former Lone Wolf bikie Yusuf Guney Nazlioglu has also been charged with murder, while Moustafa Salam has been charged with being an accessory.
The bail hearing was told Doudar accepted Mr Hawi was murdered by up to three people but argued police were mistaken in identifying him as one of the perpetrators.
Doudar's barrister Greg James said his client's prior convictions had never been to the degree of severity of a planned execution.
He also questioned how video footage of Doudar after the murder could help prove he arranged the murder, allegedly motivated over a debt.
Prosecutors allege Doudar's car was tracked on CCTV travelling from his CBD home to Rockdale about the time of Mr Hawi's shooting.
Doudar's recorded conversation with a man in custody and his efforts to conceal and repair a vehicle used in the murder are among other pieces of circumstantial evidence that tie him to the killing, prosecutors allege.
Justice Garling rejected Mr James' description of the case as "weak" and said there was a lack of an innocent explanation.
Circumstantial evidence in isolation may appear weak "but when considered together, it gains greater weight and significance", he said.
Doudar's case is next due to come before Central Local Court on Thursday.