Partygate investigator Sue Gray's "unprecedented" planned move to Labour leader Sir Keir Starmer's office may have breached civil service rules, ministers have said.Paymaster General Jeremy Quin raised in the Commons on Monday four areas where the senior civil servant may have fallen foul during the "exceptional situation".Deputy Labour leader Angela Rayner accused Conservative MPs of pursuing "conspiracy theories" spread by former prime minister Boris Johnson and his allies.

Partygate investigator Sue Gray's "unprecedented" planned move to Labour leader Sir Keir Starmer's office may have breached civil service rules, ministers have said.Paymaster General Jeremy Quin raised in the Commons on Monday four areas where the senior civil servant may have fallen foul during the "exceptional situation".Deputy Labour leader Angela Rayner accused Conservative MPs of pursuing "conspiracy theories" spread by former prime minister Boris Johnson and his allies.