there are between 3,000 and 3,500 people living in the building, about 85% from Zimbabwe. During the day he encourages them to go out, ideally in search of work, but at night they cram in wherever they can, sleeping on the floors, stairs and pews. Some used to squat on the street outside, but an aggressive police raid last month, following complaints from local businesses, has forced the church's worship areas to take in a further 300.