Gang Squad detectives have searched a house in Doonside and seized a number of vials of steroids as part of an investigation into bikie gangs.
Officers also seized a firearm from a prominent bikie in Oakhurst on the weekend.
Just before 7pm on Saturday June 30, Strike Force Raptor investigators searched a house at Mount Vernon Road, Mount Vernon, with alleged links to bikie gangs.
More than 200 grams of an amphetamine-like substance was seized, and police also located what appeared to be old bullet holes in the front of the home.
Later that evening, officers stopped and searched a vehicle at Oakhurst, seizing a loaded nine millimetre semi-automatic pistol and an amount of cash.
Jamie George Zammit, 30, the driver of the vehicle, who police allege to be a former high-ranking member of the Nomads and now a member of the Rebels, was arrested and charged.
Mr Zammit is a Mount Vernon resident, but police have not confirmed whether it was his house which was searched earlier in the day.
He was the head of the Nomands bikie gang in Sydney.
He remains in custody to next face Mount Druitt Local Court on Thursday July 5.
Following further inquiries, Strike Force Raptor investigators executed a search warrant on a home at Sulman Place, Doonside, yesterday afternoon, Monday, July 2.
Inside, they located a number of vials of steroids and other items which were seized for further examination. Inquiries are continuing.
Strike Force Raptor was established by State Crime Command’s Gangs Squad in 2009 and is a proactive and high-impact operation targeting outlaw motorcycle gangs and any associated criminal enterprises.
Anyone wishing to assist Strike Force Raptor with information in relation to outlaw motorcycle gangs is asked to contact Crime Stoppers on 1800 333 000.