Ritchie Cogan obituary

My friend Ritchie Cogan, who has died aged 75, was a producer and pioneer of social action through broadcasting and, sometimes, a thorn in the side of the BBC.In 1984 he devised Crimewatch, inspired by a German format and presented by Nick Ross and Sue Cook. He enlisted the police to bring unsolved crimes to the studio. These were re-enacted on film, the public were asked to help and a battery of police officers manned the phones to take calls from the public, live on air. This year it is to be