direct to your inboxGreater Manchester Police has at times ‘deliberately withheld’ information from the mayor’s office amid battles for transparency that became a ‘war of attrition’, Andy Burnham has claimed, in a veiled attack on the previous Chief Constable.In a lengthy and unprecedented diatribe on the force’s culture and leadership over the past four years, the mayor promised what he said would be the first ‘open review of the force’ in at least two decades.He claimed that concerns raised