Thirteen people have been arrested for drug possession at a music festival in Melbourne's CBD.
A significant amount of MDMA, with a street value of $10,000, was confiscated by police at the Listen Out festival on Saturday.
Police also seized ecstasy, amphetamines, cocaine and prescription drugs during a sniffer dog operation at the Royal Botanic Gardens.
A 28-year-old Brighton man was charged with trafficking a drug of dependence and has been bailed to appear in court at a later date.
Twelve other people received drug diversions.
Senior Sergeant Mark Pilkington said the operation aimed to stop people before they brought drugs into the event.
"It continues to concern us that, despite the dangers, young people risk their health by using illegal substances," he said.
"These drugs are extremely dangerous. They are manufactured by criminals and users have no way of knowing what they're actually ingesting or the real risks involved."
The festival, formerly known as Parklife, saw 46 people arrested last year for possessing drugs.