However, they represent a complementary high‐
risk‐group intervention that not only reduces relapse rates (and thus improves traffic safety) but also
improves quality of life for many of the participants. The main causes of many traffic offences are not
restricted to the abilities of driving a car. Attitudes, major personal or social problems, lifestyle or
personality are much more important factors. Therefore a change in behaviour is not easy to achieve
but, if it is successful,