Abstract
An alcolock is a breath testing device connected to the ignition system of a motor vehicle. It prevents an operator from starting the vehicle if the breath alcohol concentration exceeds a predetermined threshold or fail level. From November 2000 until September 2001, a consortium of European road safety research institutes conducted a study of the feasibility of alcolock implementation in drink-driving policies of EU countries. This report contains a presentation of this study, held at the European Commission, 4 December 2001.