Sir Geoffrey Cox ‘does not believe’ he broke rules on Commons office use

Boris Johnson has said MPs who break Commons rules must be punished.

His warning came as the former attorney general Sir Geoffrey Cox said he does not believe he did breach any of those rules after a video emerged of him working as a barrister from his Commons office.

The recording shows Sir Geoffrey taking part in a British Virgin Islands inquiry into corruption, for which he is being paid hundreds of thousands of pounds.

Labour have called for an investigation.