Bully for her. Holloway, yes, UrbEx is technically illegal. But some of the explorers I've met with a greater wealth of experience than myself assure me that you're only likley to face charges if you trespass on sites that contain elements that pose a risk to the intruders or any staff if disturbed (or could inconvenience those living nearby), such as power stations, abandoned tube stations, MoD property etc. Other than that, you aren't likely to find yourself before the beak if you poke around a disused warehouse. But the getting 'caught' aspect is all part of the thrill of UrbEx.