Police have shared shocking dash-cam footage shows a drink-driver wreaking havoc on a busy A-road driving - nearly causing multiple crashes.Gloucestershire Police released the video as a 'stark reminder' of the dangers of drink driving.The intoxicated driver is shown swerving from side to side and nearly causing several crashes in the 56-second clip.Throughout the video, which was filmed on the A417 in Gloucestershire, the driver almost collides into several cars and a motorbike whilst swerving onto the opposite side of the roads and into road signs.The driver was eventually stopped by police and disqualified from driving for 20 months.They were also fined £274 and ordered to have alcohol dependency treatment for six months.No one was injured.