The home secretary has refused to describe China as an “enemy of the UK” as she insisted there was no ministerial interference in the collapse of a Chinese espionage case.Shabana Mahmood said she was “very disappointed” that the trial of Christopher Berry, 33, and Chris Cash, 30, a former parliamentary researcher, did not go ahead, as she was grilled over whether there was any influence from government advisers over the decision. Both men had denied the allegations.The Sunday Times reported that Sir Keir Starmer’s national security adviser Jonathan Powell met with other senior Whitehall mandarins, including the foreign office’s top civil servant Sir Oliver Robbins, to discuss the case early last month, days before the charges against the pair were dropped on 15 September.In order to prove the case under the Official Secrets Act, prosecutors would have had to show the defendants were acting for an “enemy” – but Mr Powell reportedly revealed the government’s evidence would be based on the national security strategy, which does not use that term to describe China.The Sunday Times reported this meant Matthew Collins, the deputy national security adviser due to give evidence for the prosecution, would be unable to say Beijing was an enemy.Christopher Berry (left) and former parliamentary researcher Christopher Cash (right) who had denied the Chinese spying allegations More