Inside the investigation into the discovery of 38 tonnes of illegal meat, plants in Australia

Frozen duck or goose was among the items seized. (Supplied: Department of Agriculture, Fisheries and Forestry)

Not since Johnny Depp was issued a 50-hour warning to remove his mutts Pistol and Boo from Australia have biosecurity officials been so best in show.

Authorities are now investigating how 38 tonnes of high-risk foods and plants came to be in a western Sydney warehouse earlier this year.