I am hoping someone with legal knowledge can help me with a work situation. I am a mental health liaison nurse in a general hospital. Many people who I assess are in a highly distressed state and can be aggressive. The police frequently bring people into the A&E department who have been removed from risky situations. There is a huge move to reduce the number of people detained by police under section 136 of the mental health act, therefore the consent of people arriving with the police in A&E is questionable at times. A few weeks ago the police brought a young woman in after an episode of self harm, she was aggressive and trying to leave. It was suggested to the police they utilise a section 136 they declined and handcuffed her . Eventually she calmed down after sedation and the handcuffs removed. Is it legal to handcuff in this situation when not arrested or detained under the MHA ? I have complained to the local police representative for vulnerable people but my question about handcuffing has been ignored in the complaint.