In a statement, the Hawkesbury detachment of the Ontario Provincial Police (OPP) said officers spoke to the driver at the checkpoint at about 2:30 p.m. on Monday. Police alleged the driver was impaired by a drug, and searched the vehicle.

Police said a sawed-off shotgun and ammunition. The driver was arrested and charged with operation while impaired – alcohol and drugs, transport firearm, in a careless manner, breach of firearms regulation – transport firearm, unauthorized possession of firearm, knowledge of unauthorized possession of weapon, occupant of motor vehicle knowing there was a firearm, possession of firearm or ammunition contrary to Prohibition Order, failure to comply with release order, possession of a firearm knowing serial number had been tampered with,  driving under licence of other jurisdiction while suspended in Ontario, drive vehicle with cannabis readily available, and driving motor vehicle with liquor readily available. 

The driver will face court at a later date. None of the charges have been proven in court.