Artikel 8

In countries where the principle of the extradition of nationals is not recognised, nationals who have returned to the territory of their own country after the commission abroad of an offence referred to in Article 3 should be punishable in the same manner as if the offence had been committed in their own territory, even in a case where the offender has acquired his nationality after the commission of the offence.
This provision does not apply if, in a similar case, the extradition of a foreigner could not be granted.