Samenvatting
During the 1983 Christmas holiday period an anti drinking-driving campaign was held. The events were described as the Christmas Crusade. It was, for fortuitous reasons, one of the most intensive enforcement and publicity campaign, ever directed at drunk driving in the U.K. The experience of it reinforces the expectation that deterrent interventions involving highly publicised campaigns of increasing punishment for illegal behaviour can be successful over a limited time period.