'Crossing the Line' is the result of a partnership between Railtrack and Catalyst Theatre in Health Education. The play has been specially devised for children aged 12 to 14 years. In researching the programme, Catalyst met with Railtrack staff, the British Transport Police, teachers and children to hear their views on the impact of trespass and vandalism and why it happens. The themes of risk-taking and excitement figured highly in these discussions, as did trespass and vandalism as a diversion from boredom. The railway was seen as an impersonal target where the consequences of actions were 'out of sight'. Often, the consequences of trespass and vandalism happened after the young people had left the site. The drama and the discussion with the young people that takes place as part of the programme addresses these issues. It also explores with the young people why we take risks and get involved in activities that we know to be wrong.