Involuntary admission or detention of persons is a controversial though widespread practice in modern mental health services. Accordingly, for decades now, there have been calls and initiatives to try to reduce the practice. Human rights-based mental health care has gained considerable momentum in recent decades and integral to that approach is the push for reduction or abolition of coercive practices within psychiatry. A key juncture in this movement has been the formulation of the UN Convention on the Rights of Persons with Disabilities in 2006, in particular, articles 12 and 14, which call respectively for equal recognition of persons with disabilities before the law, and for those persons not to be deprived of their liberty unlawfully or arbitrarily. This chapter discusses the concept and practice of involuntary admission, and the views and experiences of some who have assisted with, or who have been subject to such admissions. It considers some of the authoritative stipulations of the CRPD and the feasibility of implementing them in legislation and practice. Concepts of advance directives and supported versus substitute decision-making are analysed. It looks at justifications offered for the continued use of involuntary admission and concludes with an examination of the better known initiatives to reduce involuntary detention rates.