A 36-year-old man has been charged following a police investigation into the alleged supply of prohibited drugs in southern New South Wales.

NSW Police said Strike Force Nyrol was established in June 2026 by officers from the Monaro Police District to investigate a man allegedly connected to a prohibited drug supply network. Investigators conducted inquiries over several months before making an arrest on Wednesday, 23 September.

At about 4pm on Wednesday, officers from the Monaro Region Enforcement Squad, supported by specialist police from the Southern Region Operations Support Group and the Illawarra Region Enforcement Squad, stopped a hatchback on the M7 Motorway at Rooty Hill in Sydney's west.

Police arrested a 36-year-old man during the operation. He was taken to Mount Druitt Police Station for further inquiries.

NSW Police said officers subsequently executed search warrants at two properties in the state's south. The searches were part of the ongoing investigation into the alleged drug-supply network.

During the operation, police seized a quantity of suspected prohibited drugs along with other items that investigators believe may be relevant to the investigation. Police have not indicated that the investigation has concluded, and further inquiries are continuing.

The investigation is being conducted under Strike Force Nyrol, which was created to examine alleged connections between individuals involved in prohibited drug supply across the region.

Drug-supply investigations can involve extensive police work because investigators may need to establish links between suspected suppliers, transport arrangements, properties and other people allegedly connected to the network.

The arrest on the M7 motorway followed months of investigative activity. Specialist police units assisted the Monaro investigators during the operation, reflecting the regional nature of the investigation and the involvement of officers from several commands.

The accused man was charged following the investigation and was expected to face court proceedings. As with all criminal charges, the allegations have not been proven in court.

Police investigations into alleged drug networks can continue after an initial arrest. Investigators may examine seized material, electronic devices, communications and other evidence as part of determining whether additional people or offences are connected to the case.

The operation also demonstrates how investigations that begin in regional NSW can extend into metropolitan Sydney. The vehicle stop occurred at Rooty Hill, while the original investigation was conducted through the Monaro Police District.

Authorities have not indicated that the investigation is finished, meaning further arrests or charges could potentially follow if investigators identify additional evidence. Any further developments would be considered through the normal court and police processes.

NSW Police have encouraged members of the public with relevant information about suspected drug activity to provide information through official reporting channels.

The 36-year-old man's charges remain allegations until they are determined by a court.