A former anaesthetist has been jailed for life for intentionally poisoning 30 patients, including 12 who died.

A court in the city of Besançon in eastern France found Frédéric Péchier guilty of contaminating infusion bags with substances that caused cardiac arrest or hemorrhaging.

His youngest victim, a four-year-old child, survived two cardiac arrests during a routine tonsil surgery in 2016. The oldest victim was 89.

“You are Doctor Death, a poisoner, a murderer. You bring shame on all doctors,” said prosecutors last week. “You have turned this clinic into a graveyard.”