“The Commission likewise stresses that there must be no element of arbitrariness; the conclusion it draws is that no one may be confined as ‘a person of unsound mind’ in the absence of medical evidence establishing that his mental state is such as to justify compulsory hospitalisation ………… The applicant and the Government both expressed similar opinions. The Court fully agrees with this line of reasoning. 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.”