The Scottish Road Safety Campaign and the Road Safety Council of Wales have made a large investment in theater tours as a method of providing road safety education. This study aimed to evaluate the effectiveness of a road safety message delivered by a theater group, Road Safety Officers (RSOs), or, teachers for pupils in upper secondary classes. Five schools were the primary focus of the study. Evaluation was based on three criteria: imparting factual information; raising pupil's awareness of road safety issues; and changing their attitudes on drinking and driving. Certain key areas in students' knowledge were influenced by the presentations. After the presentations students were more likely to: acknowledge they could not reduce the amount of alcohol already in their bloodstream by, for example, drinking hot coffee; agree that a zero alcohol limit should be enforced; and agree that the drinking and driving message was relevant for them irrespective of age or circumstance. Students expressed a clear preference for the theater presentation. Several feedback points were included. The impact of using Welsh language as a medium was examined. Implications for content, method of future teaching and learning related to drinking and driving were reviewed. Contains 41 references and extensive appendices and tables. (JBJ)