A British couple imprisoned in Iran on espionage charges have lost their legal appeal, the Foreign Office confirmed on Tuesday, amid mounting concerns that Tehran is weaponising its judiciary for diplomatic leverage.
James and Sarah Cartwright, both 38, were arrested in September 2023 while touring historical sites in Isfahan. Iranian authorities alleged they were collecting intelligence for MI6, a claim both deny. Their two-year sentences were upheld by a revolutionary court in Tehran, bringing the total number of dual nationals held in Iran to eight.
The Foreign Office condemned the ruling as “baseless” and reiterated calls for consular access. A spokesperson said: “This verdict is a clear violation of international law. We are using every diplomatic channel to secure their release, but Tehran’s actions suggest a deliberate escalation in hostage diplomacy.”
Analysts point to a pattern. Iran has increasingly detained Western nationals to extract concessions, from frozen assets to nuclear negotiations. The British couple now join a list of at least six other foreign detainees, including French, Belgian, and Swedish nationals, held on trumped-up security charges.
“Tehran views these individuals as bargaining chips,” said Dr. Helena Cross, a fellow at Chatham House. “The regime faces severe economic pressure and internal dissent. Detaining Westerners offers a low-cost means of gaining leverage on multiple fronts.”
The European Union has privately warned member states against uncoordinated negotiations, fearing a bidding war that rewards hostage-taking. Britain, however, has pursued bilateral talks, including a reported offer to unfreeze £400 million in debt linked to a pre-revolution tank sale. Iran has denied any linkage.
For the Cartwright family, the appeal’s failure is a devastating blow. Their daughter, Lily, 12, is being cared for by grandparents in Surrey. In a statement, they said: “Every day without James and Sarah is a torment. We implore the British government to do everything in its power to bring them home.”
The Foreign Office has advised against all but essential travel to Iran. But with Tehran’s hostage playbook expanding, the Cartwright case may be less an anomaly than a harbinger. The stability of consular norms is fraying, and with it, the safety of every traveller in the region.
