"The Mystery Machine was seen touring Herts today by our officers. It was also a mystery as to where the MOT was." (Image: BCH Roads Policing Unit/Twitter)
The Mystery Machine has been pulled over on a motorway in Hertfordshire.
A picture, published by police, shows the Scooby Doo-themed van on the hard shoulder of a motorway.
A police officer confronted the driver about whether the vehicle had passed its MOT test.
A Bedfordshire, Cambridgeshire and Hertfordshire Road Policing Unit statement reads: "The Mystery Machine was seen touring Herts today by our officers.
"It was also a mystery as to where the MOT was.
"The driver unfortunately didn't know either.
"Reported for offence."
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