In a letter to the Guardian, the director of Liberty, Shami Chakrabarti, the Conservative MP David Davis, Lady Kennedy QC, the former director of public prosecutions Lord Macdonald QC and others warn that the government‘s justice and security green paper violates „basic principles of the common law“.

Their criticism comes as the justice secretary, Ken Clarke, gives evidence to parliament‘s joint human rights committee on the impact of the proposals that will prevent claimants being told of the evidence against them.