In 2015, an orgy of gang violence erupted in Salford, characterised by an escalating series of tit-for-tat attacks between rival outfits which culminated in the shooting dead of Salford 'Mr Big' Paul Massey.
The story of the violent war between the A Team, allied to Massey, and the Anti A Team is familiar to anyone with even a passing knowledge of Greater Manchester's recent criminal history.
But the alleged power struggle inside the investigation team at the time, as it struggled to keep a lid on the violence, is less well known. Now, a tribunal has heard a string of allegations from retired officer Pete Jackson, 59, that he was repeatedly 'undermined' as he battled to bring gangsters and gunmen to justice as part of GMP's Operation Leopard.