Article 1
Each Contracting Party agrees to extradite to the other, in the circumstances and subject to the conditions described in this Treaty, persons found in its territory who have been charged with, or convicted of, any of the offenses covered by Article 2 of this Treaty committed within the territory of the other, or outside thereof under the conditions specified in Article 3(3) of this Treaty.
Article 3(3) states
When the offense for which extradition has been requested has been committed outside the territory of the requesting State, the executive or other appropriate authority of the requested State shall have the power to grant the extradition if the laws of the requested State provide for jurisdiction over such an offense committed in similar circumstances.
[1] http://www.mcnabbassociates.com/Canada%20International%20Ext...