Tulip Siddiq has campaigned nobly for the return of her constituent, Nazanin Zaghari-Ratcliffe. The Labour MP is again doing her bit to try and persuade the Iranian government to free the British-Iranian mum, who has been locked up on trumped-up charges in Iran.

‘After over four years in Evin Prison, Nazanin has been under house arrest in Iran and is unable to leave the country,’ write Siddiq and the mayor of London, Sadiq Khan, in the Evening Standard today.