Protection from refoulement
Article 21
1. Member States shall respect the principle of non-refoulement in accordance with their international obligations. 2. Where not prohibited by the international obligations mentioned in paragraph 1, Member States may refoule a refugee, whether formally recognised or not, when: (a) there are reasonable grounds for considering him or her as a danger to the security of the Member State in which he or she is present; or (b) he or she, having been convicted by a final judgment of a particularly serious crime, constitutes a danger to the community of that Member State. 3. Member States may revoke, end or refuse to renew or to grant the residence permit of (or to) a refugee to whom paragraph 2 applies.