Heroin valued at $7,000 made it from the street to the Knoxville Police Department impound lot to the auction block and back to the street — undetected.

In fact, police never discovered the 70 grams of the drug hidden in the padding of a vehicle seized as part of a probe into a heroin pipeline running from Chicago to Knoxville and Sevierville.

The vehicle's buyer did.

“During vehicle seizures, the vehicles are searched as was the vehicle in question,” KPD spokesman Darrell DeBusk said in response to questions from the News Sentinel. “The drugs that were found by the new owner of the vehicle were hidden within the padding of the seat. This was not an incident of officer negligence.”

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