Andy Burnham today announced a 'pause' on Labour's prison early release scheme amid an outrage at PC Andrew Harper's killers being freed from jail.The Prime Minister said he and his new Justice Secretary Alex Norris would conduct an 'urgent review' of the policy, which had been due to start on September 2.The move threatens to plunge the prisons system into fresh chaos, with Mr Burnham insisting no prisoners will be released under the scheme until the review is complete.It will leave officials scrambling to work out prison release plans for thousands of criminals who are due to become eligible for early release after serving as little as a third of their sentence.The PM indicated the scheme - which had been Labour's solution to the prison overcrowding crisis under Keir Starmer's administration - could yet face a major overhaul by Mr Norris, with Mr Burnham saying he would 'not hesitate' to make changes.'Keeping the public safe will always be my top priority,' he said in a statement. 'I am working closely with the new Justice Secretary and have instructed my team to put a pause on the changes that were due to start in September.'No prisoners will be let out under this policy until we have conducted an urgent review and done everything we can to minimise risk to the public. Where changes are needed, we will not hesitate to make them.'Mr Norris, who has only been in charge at the Ministry of Justice since Monday, said around 700 prisoners who had been set for early release in September would now no longer be released as part of a first tranche.