Artikel 6

1. Each Contracting State shall take such measures as may be necessary to establish its jurisdiction over an offence mentioned in Article 1 in the case where the suspected offender is present in its territory and it does not extradite him after receiving a request for extradition from a Contracting State whose jurisdiction is based on a rule of jurisdiction existing equally in the law of the requested State.
2. This Convention does not exclude any criminal jurisdiction exercised in accordance with national law.