my tuppenny worth. Assess, get him to the hospital for treatment, i'd question his mental health status too and inform whoever you're handing over too of what was said. It's still confidential, but the patient needs assessing and treating and if he's any sort of risk u have to pass that on as part of the record, then its up to the hospital what they do, its not your job to inform the police its your job to get him to hospital and inform them of the patients status. If you took him to cas here, there's a cop station in there.