Negligence – Causation. The claimant former undercover police officer within the defendant Chief Constable's police force sought damages for psychiatric injury. The Chief Constable contended that the claimant's adjustment disorder was attributable to his own misconduct in abusing cocaine. The Queen's Bench Division, in dismissing the application, held that the chronic adjustment disorder from which the claimant suffered had been caused by the fact that he had been confronted with his own misconduct and that he had had to face the traumatic consequences of that.