Two customs agents have been charged in connection with Australia's largest ever onshore seizure of the drug "ice", a bust worth a record US$840 million, police said Thursday.
Australian Border Force agents in April found 1.6 tons of methyl amphetamine and 37 kilograms (81.5 pounds) of heroin in vacuum-sealed packages hidden inside stereo speakers shipped from Thailand to Melbourne.
Police arrested two men and a woman in their late thirties on Wednesday following raids in suburban Melbourne, Australia's second-largest city.
"Two of the three were customs agents. They are trusted insiders within the industry," Australian Federal Police deputy commissioner Neil Gaughan said.
He added they were not government employees but private contractors.
"They used their position of trust to circumvent the border controls that exist within Australia," he was quoted as saying by national broadcaster ABC.
Police said they were cooperating with authorities in Thailand where an investigation was ongoing.