Drunk motorists cause thousands of accidents on UK roads every year. Some 1,380 people were killed or seriously injured when at least one driver was over the limit. This represents a statistically significant rise from 1,310 in 2014. A lot of people may be surprised to learn that accidents occur the most over the summer period. This week’s tips give advice on drink driving, from IAM RoadSmart’s head of driving and riding standards Richard Gladman.