The present scientific study at its core addresses the legal qualification of drug sedation comparing the legal situation in Switzerland, Austria and Germany, locally limited to retirement and nursing homes. It is apparent from § 3 par. 1 of the HeimAufG that in Austria drugs as potential physical means to attain a restriction of liberty of an occupant of a retirement and nursing home are expressly recognised. It is uncontested that the same statement can also be made for Germany, for in § 1906 par. 4 of the BGB (German Civil Code) drugs as potential means to attain custodial measures or, respectively, commitment-like measures as provided for by this provision are expressis verbis mentioned. Central legal question that is examined in detail in my doctoral thesis is therefore the question when exactly the administration of a drug (as medical measure) constitutes a limitation of freedom by application of drugs (in the sense of § 3 par. 1 of the HeimAufG) or, respectively, a custodial / commitment-like measure (in the sense of § 1906 par. 4 of the BGB) at the same time. The new Swiss Adult Protection Law (effective since 01-01-2013) however presents itself differently from that wherefore the history of its origins and the fundamental principles of such as well as the objectives and purpose pursued shall be examined in depth by me to improve the comprehensibility of the Swiss solution of this problem more traceable. Furthermore, the general requirements under Medical Law of each medical measure / treatment applicable in Switzerland, Austria and Germany shall be dealt with in detail. The commitment law shall equally be explored in the course of my thesis. In view of this, the Fundamental Right to freedom of movement as part of the personal freedom on an international, European as well as national level (Switzerland, Austria, Germany) will be dealt with in detail.