Sam Tarry, shadow transport minister and MP for Ilford, was sacked as a Labour frontbencher on Wednesday after taking part in broadcast interviews from a rail strikes picket line.
Keir Starmer has previously warned shadow ministers not to join picket lines, although several did so during the last rail strikes in June and did not lose their jobs. However, unlike Tarry they did not take part in media appearances unapproved by the Labour party.
