‘The provisions of this Convention shall not apply to any person with respect to whom there are serious reasons for considering that:
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he has committed a crime against peace, a war crime, or a crime against humanity, as defined in the international instruments drawn up to make provision in respect of such crimes;
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he has committed a serious non-political crime outside the country of refuge prior to his admission to that country as a refugee;
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he has been guilty of acts contrary to the purposes and principles of the United Nations’.(4)