In England and Wales,the Mental Health Act(MHA) 1983 provides the legal framework for the detention of individuals suffering from a mental disorder if they are judged to present a risk of harm to self or others.The MHA removes from certain psychiatric patients civil liberties otherwise inherent in our legal system.Through both statute and common law,it balances a patient's right to autonomy with psychiatrists' duty of care by reference to the health and safety of the patient.It also balances the civil rights of individual patients against the right of society to protection.