Abstract
The present paper hypothesises that there is a subgroup of high accident risk drivers who exhibit a high-risk behaviour syndrome. Impaired driving is only one of the high-risk behaviours engaged in by these drivers. Other high-risk behaviours include speeding, tailgating, non-use of seat belts in the road safety domain as well as other types of behaviour such as drug use. Previous research by the authors will be reviewed to support this theoretical notion.