Four people charged over the importation of more than 35kg of methylamphetamine hidden in ceramic tiles from China have appeared briefly in a Perth court.
The three men and one woman allegedly attempted to bring the 17 pallets of ceramic tiles into Australia in January.
The drugs have a street value of about $13 million.
The Australian Federal Police, Australian Crime Commission and Australian Customs and Border Protection Service issued search warrants across Perth and seized a further 2kg of a substance believed to be methylamphetamine, $38,700 in cash and a stun gun.
The three men, Michael Quoc Hong Ly, 34, Jacky Lee, 25, and Chung Yin Tam, 21, and the woman Li Chun Huang, 49, are each charged with attempting to possess a border-controlled drug, which carries a maximum penalty of life imprisonment and/or an $825,000 fine.
The four appeared in the Stirling Gardens Magistrates Court on Wednesday - two via video link from Hakea Prison and two in person.
They will be back in court on July 31.