10.      (1) A person is excluded under this Act from being a refugee where he or she—

(a) subject to subsection (4), is receiving from organs or agencies of the United Nations (other than the High Commissioner) protection or assistance, or

(b) is recognised by the competent authorities of the country in which he or she has taken up residence as having the rights and obligations which are attached to the possession of the nationality of that country, or rights and obligations equivalent to those.

(2) A person is excluded from being a refugee where there are serious reasons for considering that he or she—

(a) 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,

(b) has committed a serious non-political crime outside the State prior to his or her arrival in the State, or

(c) has been guilty of acts contrary to the purposes and principles of the United Nations as set out in the Preamble and Articles 1 and 2 of the Charter of the United Nations.

(3) A person is excluded from being a refugee where there are serious reasons for considering that he or she has incited or otherwise participated in the commission of a crime or an act referred to in subsection (2).

(4) Subsection (1)(a) shall not apply to a person referred to in that subparagraph where the protection or assistance concerned has ceased for any reason, without the position of persons who had been receiving that protection or assistance being definitively settled in accordance with the relevant resolutions adopted by the General Assembly of the United Nations.