"At the self-service checkout counter, you intentionally scanned the barcode for the carrots instead of the bar code for the donuts with the result that you were charged £0.07 for the donuts rather than £9.95," police claimed.
Police said the breach of professionals standards was "so serious that dismissal would be justified".
His superiors stated that the alleged behaviour "brings discredit upon the police service and undermines confidence in it because a reasonable member of the public, aware of all the facts, would be justifiably appalled that a police officer had acted dishonestly and without integrity".
Police officers' love of doughnuts has been the subject of many jokes and caricatures, and police have often been in on the jokes.
Photos police officers in Kentucky, US, took of themselves mourning the loss of a truckload of Krispy Kreme doughnuts went viral on social media early last year.
The photos were taken where a truck full of doughnuts caught fire on New Year's Eve 2018, then shared to Twitter, playing on the stereotype of the doughnut-loving cop.
"No words," the caption read, with a crying emoji.
Police officers all over the world responded with sympathy for the Kentucky cops' loss.