A Cessnock man was charged for selling the substances over the counter at the service station, where he worked as an attendant, on Monday, January 6.

Officers seized 370 grams of Kronic, a form of synthetic cannabis, and 17 grams of White Revolver, a type of synthetic cocaine.

The 27-year-old was charged with two counts each of supply of a prohibited drug and possession of a prohibited substance.

Central Hunter crime manager, Detective Inspector John Zdrilic said police found about $5000 worth of Kronic and $5000 worth of White Revolver at the scene.

Detective Inspector Zdrilic said street value of synthetic drugs had skyrocketed since they became illegal.

“We got some information from the public that he was selling illegal substances from that location, so we went in like a hurricane,” he said.

“If we receive information from the public, we will act on it.”

Detective Inspector Zdrilic said synthetic drugs had been an issue of concern in parts of the region, but police had made a number of arrests in an effort to take synthetic drugs out of the community.

Synthetic drugs were outlawed in NSW last October.

New offences under the Drug Misuse and Trafficking Act 1985 include manufacture, supply and advertising of synthetic drugs, and carry a maximum jail term of two years and fines of more than $2000.