NSW Police can now stop and search convicted drug dealers' cars or drop by their homes without a warrant after a bill extending the new powers passed state parliament.
The legislation, passed on Thursday, paves the way for a two-year pilot of a Drug Supply Prohibition Order scheme.
A court issued DSPO will give police the power to search convicted drug dealers and their homes and cars at any time if police have reasonable grounds to suspect there is evidence of drug-related crime.
It will be trialled in the Bankstown, Orana Mid-West, Hunter Valley and Coffs/Clarence police districts.
"I want convicted drug dealers and organised criminal networks who target the most vulnerable in our State to know that they have nowhere to hide if they are dealing drugs," Police Minister David Elliott said in a statement.
NSW Police State Crime Commander Assistant Commissioner Stuart Smith said the new powers would help thwart organised crime.
"Often police will have an idea of where these illegal drugs are coming from, these new powers will help us swiftly shut down the supply networks," he said.
"If you are a convicted drug dealer and continue to supply or manufacture drugs ... you will be under more scrutiny."
An application for an order may be made for any person convicted of a serious drug offence in the past ten years.