London's first ever commercial radio station celebrates it's 40th anniversary - but as former presenter Douglas Cameron contests, it hasn't been without challenges:
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Richard Welch had to pause at several points during his evidence to regain composure as he spoke of his experiences that night.
Residents want to send a message about the dealing they say has become a normal part of daily life there.
The film-maker and Turner Prize-winning artist plans to oversee photographs of tens of thousands of schoolchildren.