"(a) . . . is suffering from mental disorder of a nature or degree which warrants the detention of the patient in a hospital for assessment (or for assessment followed by medical treatment) for at least a limited period; and (b) he ought to be so detained in the interests of his own health or safety or with a view to the protection of other persons."
"(a) . . . is suffering from mental disorder, being mental illness, severe mental impairment, psychopathic disorder or mental impairment and his mental disorder is of a nature or degree which warrants his reception into guardianship . . . ; and (b) it is necessary in the interests of the welfare of the patient or for the protection of other persons that the patient should be so received."
"(c) that the nearest relative of the patient unreasonably objects to the making of an application for admission for treatment or a guardianship application in respect of the patient; or (d) that the nearest relative of the patient has exercised without due regard to the welfare of the patient or the interests of the public his power to discharge the patient from hospital or guardianship . . . or is likely to do so."
"Everyone who is deprived of his liberty by arrest or detention shall be entitled to take proceedings by which the lawfulness of his detention shall be decided speedily by a court and his release ordered if his detention is not lawful."
"In the Court's opinion, except in emergency cases, the individual concerned should not be deprived of his liberty unless he has been reliably shown to be of 'unsound mind'. The very nature of what has to be established before the competent national authority - that is, a true mental disorder - calls for objective medical expertise. Further, the mental disorder must be of a kind or degree warranting compulsory confinement. What is more, the validity of continued confinement depends upon the persistence of such a disorder."
"it is essential that the person concerned should have access to a court and the opportunity to be heard either in person or, where necessary, through some form of representation . . . Mental illness may entail restricting or modifying the manner of the exercise of such a right, but it cannot justify impairing the very essence of the right. Indeed, special procedural safeguards may prove called for in order to protect the interests of persons who, on account of their mental disabilities, are not fully capable of acting for themselves."
"(i)section 2 of the Mental Health Act 1983 is incompatible witharticle 5(4) of the Convention in that it is not attended by adequate provision for the reference to a court of the case of a patient detained pursuant to section 2 in circumstances where a patient has a right to make application to a mental health review tribunal but the patient is incapable of exercising that right on his own initiative; (ii)section 29(4) of the 1983 Act is incompatible witharticle 5(4) of the Convention in that it is not attended by provision for the reference to a court of the case of a patient detained pursuant tosection 2 of the Act whose period of detention is extended by the operation of section 29(4)."
"Everyone arrested or detained in accordance with the provisions of paragraph 1(c) of this article shall be brought promptly before a judge or other officer authorised by law to exercise judicial power and shall be entitled to trial within a reasonable time or to release pending trial. . . ."