Sometimes, the raves take place in plain sight. Louis recently threw a rave in the centre of London’s Soho before the building was turned into luxury apartments. In 2010, revellers managed to get into the Old Post Office building on New Oxford Street and throw an 18-hour party. It’s rare for a promoter to have the nerve to organise an illegal rave in such a high-risk location - but if they do, they win respect from the community.