First of all, the Extradition Act is what we call “complete code”. It has all of the information in it that is required to begin and complete an extradition process. There is no reference in the Extradition Act to prisoner exchange, so it's not a concept known to extradition law. If we chose to put an end to an extradition proceeding in a way that was not contemplated by the treaty or the Extradition Act, that would be violating our treaty obligations.
On February 4th, 2020. See this statement in context.