Det Supt Andy Brennan led the probe after mother-of-three PC Beshenivsky was killed at point blank range when responding to the armed robbery of a travel agency in Bradford in November 2005.
Piran Ditta Khan, 75, was the last of seven men jailed for the murder of PC Sharon Beshenivsky during a fatal armed robbery in 2005 - Beshenivsky, 38, was killed and her colleague Teresa Milburn, 37, wounded
Sharon Beshenivsky: Timeline of events leading to PC's death | Bradford Telegraph and Argus thetelegraphandargus.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from thetelegraphandargus.co.uk Daily Mail and Mail on Sunday newspapers.