Incident: Westjet B737 enroute on Nov 15th 2009, unruly passenger
A Westjet Airlines Boeing 737-700, registration C-GRWS performing flight WS-515 from Calgary,AB to Comox,BC (Canada), was enroute, when a passenger acted belligerent prompting the captain to issue a warning about 25 minutes into the flight. The passenger however continued his behaviour prompting the captain to request Royal Canadian Mounted Police (RCMP) to stand by for the arrival of the aircraft. The airplane landed safely about 35 minutes after the warning, the RCMP spoke with the passenger.
Westjet reported, that the passenger was already intoxicated before boarding, no alcohol had been served to the passenger on the flight.
Source: The Aviation Herald