Urban explorers who break into construction sites are a growing problem. In our latest contract clinic, Paige Armitage and Jessica Stanway look at the legal ramifications. Despite us securing our site, trespassers broke in and climbed up a tower crane. Unfortunately, a piece of protection was missing from the crane base. They filmed themselves on the crane and put the video on YouTube. What are the risks we may be exposed to, and is there any action we can take against them?