Members of the public intervened when they spotted a suspected drink driver with a small child in the back of her car.
Police managed to stop the woman when she was seen trying to leave a car park in Malton on Thursday afternoon. She had a five-year-old child in the car.
North Yorkshire Police later Tweeted that she blew a rating of 128mg in a roadside breath test - more than three times the legal limit of 35mg.
Arrangements were made for the child to spend the night in a safe place while the woman was in custody.