Four men have been charged with impaired driving in separate incidents in Shelburne County. Mounties in Barrington say they nailed the quartet of drunk drivers between May 30th and June 2nd. Three of the men are 44 years-old while the other is 21 years-old. They each have separate court dates set for later this summer. Barrington RCMP say they will continue to be pro-active in keeping drunk drivers off the road.