This manual provides expert knowledge on theory and practice for conducting a motivational brief intervention with adolescents after alcohol intoxication, with the aim of promoting low-risk use of alcohol. Enriched with examples and tips on how to proceed in difficult (conversational) situations, users receive practical instructions on how to conduct a theory-based and evaluated motivational patient interview, instructions for a parent interview and all relevant materials for implementation. The intervention was developed and evaluated as part of a research project funded by the Federal Ministry of Education and Research (BMBF) and is based on the bridge conversation of the alcohol prevention programme "HaLT - Hart am LimiT".