Southern Metro Divisional Response Unit detectives arrested five people and seized cash and drugs in Cranbourne last night.
Officers executed a warrant as a part of Operation Ewok, targeting alleged drug trafficking at a Von Nida Court address just before 8pm.
More than $2000 in cash was allegedly located and a quantity of what is believed to be methamphetamine and heroin.
Two men aged 30 and 24, and a woman aged 54, were all arrested at the scene.
Two 30-year-old women were also arrested allegedly in possession of GHB.
They have all been released and are expected to be charged with trafficking a drug of dependence.
The investigation remains ongoing.
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