Article 4 of the European Convention on Human Rights

Article 4 of the European Convention on Human Rights prohibits slavery and forced labour. Conscription, national service, prison labour, service exacted in cases of emergency or calamity, and "normal civic obligations" are excepted from these definitions.

1. No one shall be held in slavery or servitude. 2. No one shall be required to perform forced or compulsory labour. 3. For the purpose of this article the term "forced or compulsory labour" shall not include:

Harris, David; O'Boyle, Michael; Warbrick, Colin (2014). Law of the European Convention on Human Rights (3rd ed.). Oxford; New York: Oxford University Press. pp. 279–286. ISBN . 

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