Every State Party shall also take the necessary measures to establish its jurisdiction over the crime described in this Convention when the alleged criminal is within the area under its jurisdiction and it is not appropriate to extradite him in accordance with Article 11. This Convention does not exclude criminal jurisdiction exercised in accordance with domestic law. Article 13 The crime referred to in Article 2 shall be deemed to be included among the extraditable crimes in every extradition treaty entered into between States Parties. The States Parties undertake to include the crime of torture as an extraditable offence in every extradition treaty to be concluded between them. Every State Party that makes extradition conditional on the existence of a treaty may, if it receives a request for extradition from another State Party with which it has no extradition treaty, consider this Convention as the legal basis for extradition in respect of the crime of torture. Extradition shall be subject to the other conditions that may be required by the law of the requested State. States Parties which do not make extradition conditional on the existence of a treaty shall recognize such crimes as extraditable offences between themselves, subject to the conditions required by the law of the requested State. Extradition shall not be granted nor shall the person sought be returned when there are grounds to believe that his life is in danger, that he will be subjected to torture or to cruel, inhuman or degrading treatment, or that he will be tried by special or ad hoc courts in the requesting State. Article 14 When a State Party does not grant the extradition, the case shall be submitted to its competent authorities as if the crime had been committed within its jurisdiction, for the purposes of investigation, and when appropriate, for criminal action, in accordance with its national law. Any decision adopted by these authorities shall be communicated to the State that has requested the extradition. Article 15 No provision of this Convention may be interpreted as limiting the right of asylum, when appropriate, nor as altering the obligations of the States Parties in the matter of extradition. Article 16