Sir Keir Starmer has been warned that the government must not withhold any information relating to the appointment of Peter Mandelson as ambassador to the US – or he could face a contempt motion.
Concerns have been raised over whether ministers will comply with a vote to release all the papers relating to the appointment, after the Intelligence and Security Committee (ISC) – which is overseeing the release of the documents – warned that the government is redacting more information than was initially agreed.