PC Andrew Harper’s mum campaigns for police killers to get at least 20 years

Debbie Adlam was distraught to hear her son’s killers could be out of jail in 11 years or less (Picture: PA)The mother of PC Andrew Harper is campaigning for ‘mandatory’ 20-year minimum jail sentences for anyone who kills a police officer, arguing front-line coppers ‘are not being protected’.Debbie Adlam, whose son was dragged to death aged 28 while trying to stop thieves fleeing with a quad bike last year, said the outcome of his killers’ trial shows ‘s