Morgan McSweeney failed to tell police he worked as Sir Keir Starmer’s chief of staff when he reported that his phone, suspected to contain private messages with Peter Mandelson, had been stolen.
The revelation comes as the Metropolitan Police took the unusual step of releasing a transcript of the 999 call after concerns that key exchanges regarding Lord Mandelson’s appointment as British ambassador to the US have been lost at a time when the government has been instructed by parliament to release all its records and messages on the decision.