REFUGEE CONVENTION 4. This Convention shall cease to apply to any refugee if: (a) he has voluntarily re-availed himself of the protection of the country of his nationality, or, (b) having lost his nationality, he has voluntarily reacquired it, or, (c) he has acquired a new nationality, and enjoys the protection of the country of his new nationality, or, (d) he has voluntarily re-established himself in the country which he left or outside which he remained owing to fear of persecution, or, (e) he can no longer, because the circumstances in connection with which he was recognized as a refugee have ceased to exist, continue to refuse to avail himself of the protection of the country of his nationality, or, (f) he has committed a serious nonpolitical crime outside his country of refuge after his admission to that country as a refugee, or, (g) he has seriously infringed the purposes and objectives of this Convention. 5. The provisions of this Convention shall not apply to any person with respect to whom the country of asylum has serious reasons for considering that: (a) 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; (b) he committed a serious non-political crime outside the country of refuge prior to his admission to that country as a refugee; (c) he has been guilty of acts contrary to the purposes and principles of the Organization of African Unity; (d) he has been guilty of acts contrary to the purposes and principles of the United Nations. 6. For the purposes of this Convention, the Contracting State of Asylum shall determine whether an applicant is a refugee. Article 2 Asylum 1. Member States of the OAU shall use their best endeavours consistent with their respective legislations to receive refugees and to secure the settlement of those refugees who, for well-founded reasons, are unable or unwilling to return to their country of origin or nationality. 2. The grant of asylum to refugees is a peaceful and humanitarian act and shall not be regarded as an unfriendly act by any Member State. 3. No person shall be subjected by a Member State to measures such as rejection at the frontier, return or expulsion, which would compel him to return to or remain in a territory 3