Police – Unlawful conduct. The claimants issued proceedings against the defendant Metropolitan Police Commissioner for assault, trespass and false imprisonment. The jury found facts favourable to the Commissioner, but the claimants sought to proceed further on the basis that the Commissioner's liability could be established on a joint tortfeasor basis. The Queen's Bench Division, in dismissing the application, held that the use of force by the individual officers for whose actions the Commissioner was statutorily responsible had been, on the jury's verdict, reasonable in the circumstances and the defence under s 3(1) of the Criminal Law Act 1967 succeeded, entitling the Commissioner to judgment.