Two Britons were found guilty on Wednesday of an elaborate plot to smuggle cocaine into the country by surgically implanting packets of the drug inside two Labrador dogs.
Gregory Graham, 27, and Kaye Chapman, 20, plotted to smuggle 1.3 kilograms of cocaine into Britain hidden inside the stomachs of golden Labrador Rex and black Labrador Frispa.
But the scheme was foiled when officials at Amsterdam's Schiphol Airport became suspicious at the behavior of Rex and Frispa when they arrived from Colombia en route to London's Stansted Airport.
Rex was lively but a drugs package had burst inside Frispa and she was lying apathetically.
Dutch vets operated on the dogs, removing 11 cylindrical objects from Rex and 10 from Frispa, who later died.
Altogether the packets contained a total of 1.3 kilograms of cocaine.
British police then swooped when two men and a woman arrived at Stansted to pick the dogs up, and arrested the owner of the house where the dogs were to be sent.
On Wednesday Gregory and Chapman were convicted at Norwich Crown Court of conspiracy to import drugs. Two other co-accused were cleared.
"This was an extremely callous method of drug importation that resulted in the death of Frispa and the needless suffering of Rex," said Detective Chief Inspector Andy McDonald afterwards.