Chapter IV International cooperation Article 43. International cooperation 1. States Parties shall cooperate in criminal matters in accordance with articles 44 to 50 of this Convention. Where appropriate and consistent with their domestic legal system, States Parties shall consider assisting each other in investigations of and proceedings in civil and administrative matters relating to corruption. 2. In matters of international cooperation, whenever dual criminality is considered a requirement, it shall be deemed fulfilled irrespective of whether the laws of the requested State Party place the offence within the same category of offence or denominate the offence by the same terminology as the requesting State Party, if the conduct underlying the offence for which assistance is sought is a criminal offence under the laws of both States Parties. Article 44. Extradition 1. This article shall apply to the offences established in accordance with this Convention where the person who is the subject of the request for extradition is present in the territory of the requested State Party, provided that the offence for which extradition is sought is punishable under the domestic law of both the requesting State Party and the requested State Party. 2. Notwithstanding the provisions of paragraph 1 of this article, a State Party whose law so permits may grant the extradition of a person for any of the offences covered by this Convention that are not punishable under its own domestic law. 3. If the request for extradition includes several separate offences, at least one of which is extraditable under this article and some of which are not extraditable by reason of their period of imprisonment but are related to offences established in accordance with this Convention, the requested State Party may apply this article also in respect of those offences. 4. Each of the offences to which this article applies shall be deemed to be included as an extraditable offence in any extradition treaty existing between States Parties. States Parties undertake to include such offences as extraditable offences in every extradition treaty to be concluded between them. A State Party whose law so permits, in case it uses this Convention as the basis for extradition, 30