Refusal to describe China as security threat meant ‘all routes were closed’, says director of public prosecutions

The government’s evidence in the China espionage trial was missing a “critical element” that meant there was “no other option” but to collapse the case, prosecutors insisted on Monday night.

Stephen Parkinson, the director of public prosecutions, did not directly blame anyone for the collapse of the trial but said the government’s refusal to describe China as a national security threat meant “all routes were closed”.

Matthew Collins, the senior civil servant who drafted the government’s evidence, said he could not meet prosecutors’ demands because the Conservative government at that time “did not go so far as to label China a threat in the generic sense”.

He insisted that the three statements he provided detailed the “range of threats” that China poses to the UK’s economy, cyber infrastructure and democratic institutions and that he was “surprised” and “disappointed” that the case had collapsed.