More Vic arrests in police drug raids THREE more Canadians have been swept up in police raids in Melbourne targeting an international drug syndicate. They were arrested on Sunday as part of Operation Diamondback, which was set up 18 months ago based on information from Customs and NSW Police. In August last year, police revealed the taskforce had seized 109kg of pseudoephedrine and three Canadians had been charged with drug offences. Police said on Monday the taskforce had wrapped up with a total haul of 1.9 tonnes of pseudoephedrine mixed with vanilla powder and 10 arrests. More information will be released at a federal police press conference on Monday.