Detective Acting Sergeant Elissa Smith, of the Warrnambool police divisional response unit, said officers executed a search warrant early Tuesday morning at the Breton Street address.

She said police found cannabis, GHB, prescription medication, as well as drug paraphernalia including digital scales, resealable bags and mobile phones.

"We found a trafficable quantity of GHB. The man was arrested and will be interviewed this morning," she said.

"He's expected to be charged with a range of drug-offences including trafficking and is expected to appear in the Warrnambool Magistrates Court later today for a bail/remand hearing."

Detective Acting Sergeant Smith said important information from the public led to the police raid.

"We request that anyone with information about drug-related matters contact Crime Stoppers on 1800 333 000," she said.

"That information can be provided anonymously and it's vital that we receive information from the public so we can best do our jobs."

Acting Sergeant Smith took over in charge of the DRU mid last year.

At one stage during the second half of last year, her officers arrested and charged 25 people with drug trafficking in six weeks.

Drug users reported in September last year that ice was difficult to source in Warrnambool as the police crackdown started to have an impact.

Detective Acting Sergeant Smith said her unit had a sharp focus on drug dealers with the aim of limiting the supply of illicit substances in the region.

"It's been very pleasing. We've got some outstanding young officers doing some excellent work in cooperation with the Warrnambool crime investigation unit and uniform officers across the region," she said.

Detective Senior Sergeant David Reither, of the Warrnambool police crime investigation unit, said drugs were a gateway to many other property offences, such as burglary and home invasions.

"Our focus on drug trafficking will have a positive impact on those other offences as well," he said.

"But it's only with cooperation and information from the public that police members can best do our jobs."

Read more:

Have you signed up to The Standard's daily newsletter and breaking news emails? You can register below and make sure you are up to date with everything that's happening in the south-west.