The Labour MP Keith Vaz is set to face an inquiry this autumn when the Commons complaints system is extended to include historical allegations.

Jenny McCullough has accused Mr Vaz of having bullied her when she was a clerk for the home affairs committee, which he chaired, in 2008.

Allegations from before 2017 cannot be investigated under the rules as they stand. The Commons commission, the House’s managing body, announced this week that it would broaden the system and that new rules should be in place in the autumn.

Ms McCullough, who said that Mr Vaz subjected her to angry tirades and personal comments after she challenged his arrangements for trips abroad, told The Times: “I think if this route opens up I will