On June 28 last year, Northamptonshire Police was told a man was in the Swansgate car park area of Wellingborough with what looked like a gun slip – a bag designed to carry a long-barrelled firearm.Sergeant Dave Cayton went to investigate, but when he approached and spoke to the man, 58-year-old Max Hallam, he quickly became violent, punching Sgt Cayton to the floor then climbing onto his chest, restricting his breathing while asking him ‘do you want to die?’. Source: Northamptonshire Police