Osaka Customs officers found about 280 kg of cannabis hidden in a lumber shipment that arrived at Osaka port from Canada in August 2007, in what officials called a record drug seizure.[1][2][3]

The cannabis was concealed in cavities inside the lumber, which arrived as sea container cargo and was picked out during import inspection; officers X-rayed the wood to find the hollowed spaces.[1][3] The US Embassy in Tokyo summarised the case as a joint police and customs seizure of 688,000 MDMA tablets, 155 kg of methamphetamine and 280 kg of marijuana from a vessel originating in Vancouver.[2]

The MDMA portion was a record high for Japan Customs, and the combined haul was valued at about 2.72 billion yen and described as the largest drug seizure in Japanese history, a figure covering all the drugs found rather than the cannabis alone.[1][3]