Police hunt for clues

Academic archaeologists from Bradford and Birmingham universities are overseeing the new police operation to uncover clues into the murder of PC Keith Blakelock 19 years ago during the Broadwater Farm Estate riots. Police have begun excavating the garden of a North London house, searching for weapons, bloodstained clothes and the PC's helmet. Rob Janaway, lecturer in archaeological science at Bradford University, is overseeing the police operation with John Hunter, Birmingham University professor of ancient history and archaeology, who heads a national police advisory group.