In this Triple Crossed activity, from the Centre for Science Education and supported by the Astra Zeneca Teaching Trust, students learn about the history of drug use in sport, the different drugs often used in competitive sports and are then asked to match the drugs to their dangers. A series of sheets are provided to give detailed information about types of drugs. With this understanding the students are asked to order the drugs in terms of severity and justify their answers. They then assign what they feel would be a suitable punishment for anyone caught using any of those drugs. The activity ends with a self-assessment sheet. The resource is accompanied by a set of teachers' notes.