The notion of ‘a person of unsound mind’ under Article 5 § 1(e) of the European Convention on Human Rights

This article presents a critical analysis of the case-law of the ECtHR with regards to the interpretation of the notion of ‘a person of unsound mind’ under Article 5 § 1(e) of the Convention. According to the Court, only a person who has been reliably diagnosed with a mental disorder and who poses a danger to himself or others can be legally detained as ‘a person of unsound mind’. However, the notion of ‘unsoundness of mind’ is not limited to such mental disorders which are treatable or which deprive the persons affected of their ability to self-control and so in the past the Court applied the said provision of the Convention to, among others, persons diagnosed with personality disorders or paedophilia who commited crimes acting with full criminal responsibility. The article argues that such a definition of the notion ‘a person of unsound mind’ is not sufficiently clear, what is dangerous from the perspective of protection of personal liberty. For this reason, the article proposes to limit the scope of the analysed notion to persons affected by such mental disorders that exclude or significantly reduce their ability to make informed decisions about their own health and/or to control their own behaviour and recognise the meaning of their own actions. Only then, provided that other criteria developed in the Court’s case law, such as dangerousness for self or others and lack of less restrictive alternatives, have been satisfied, detention of person with mental disorder may be consistent with the object and purpose of the Convention.