Artikel 9

Foreigners who have committed abroad any offence referred to in Article 3, and who are in the territory of a country whose internal legislation recognises as a general rule the principle of the prosecution of offences committed abroad, should be punishable in the same way as if the offence had been committed in the territory of that country.
The obligation to take proceedings is subject to the condition that extradition has been requested and that the country to which application is made cannot hand over the person accused for some reason which has no connection with the offence.