Convention relating to the Status of Refugees, 1951
Article 1. Definition of the term "refugee"
(2) As a result of events occurring before I January 1951 and owing to well-founded fear of being persecuted for reasons of race, religion, nationality, membership of a particular social group or political opinion, is outside the country of his nationality and is unable, or owing to such fear, is unwilling to avail himself of the protection of that country; or who, not having a nationality and being outside the country of his former habitual residence as a result of such events, is unable or, owing to such fear, is unwilling to return to it.
In the case of a person who has more than one nationality, the term "the country of his nationality" shall mean each of the countries of which he is a national, and a person shall not be deemed to be lacking the protection of the country of his nationality if, without any valid reason based on well-founded fear, he has not availed himself of the protection of one of the countries of which he is a national.
Protocol relating to the Status of Refugees, 1967
Article 1. General provision
1. The States Parties to the present Protocol undertake to apply articles 2 to 34 inclusive of the Convention to refugees as hereinafter defined.
2. For the purpose of the present Protocol, the term "refugee" shall, except as regards the application of paragraph 3 of this article, mean any person within the definition of article I of the Convention as if the words "As a result of events occurring before 1 January 1951 and..." and the words "...as a result of such events", in article 1 A (2) were omitted.
Article 33. Prohibition of expulsion or return ("refoulement")
1. No Contracting State shall expel or return ("refouler") a refugee in any manner whatsoever to the frontiers of territories where his life or freedom would be threatened on account of his race, religion, nationality, membership of a particular social group or political opinion.
2. The benefit of the present provision may not, however, be claimed by a refugee whom there are reasonable grounds for regarding as a danger to the security of the country in which he is, or who, having been convicted by a final judgement of a particularly serious crime, constitutes a danger to the community of that country.