A landmark Supreme Court ruling handed down yesterday (28 March) means insurers could face hundreds of millions in claims from sufferers of mesothelioma, a cancer caused by exposure to asbestos dust.

By a majority of four to one, the Supreme Court ruled that the insurer indemnifying an employer at the time of exposure of their staff to asbestos – known as the trigger period – was liable for subsequent damages claims, not the insurer providing cover at the time mesothelioma develops.