Overview

• In court, the lead investigator detailed two syringes containing mepivacaine and a pierced paracetamol infusion bag tied to Jean‑Claude Gandon’s cardiac arrest during prostate surgery in January 2017.
• Toxicology findings presented to jurors indicate Gandon suffered mepivacaine intoxication after the anesthetic was introduced into his infusion line.
• Police already present at the clinic sealed the devices immediately, and the investigator testified that no one besides Dr. Frédéric Péchier or a trainee nurse entered the operating room that day.
• Nine days earlier, Sandra Simard experienced an unexplained cardiac arrest, with a potentially lethal potassium dose later reported in her infusion, triggering the broader inquiry.
• Péchier denies poisoning patients as his defense attacks the investigation as “justice fiction,” with the cour d’assises du Doubs scheduled to deliver a verdict on December 19.