Is there any weaknesses in the evidence relied upon by the requesting state?

Respecting such weaknesses as there may be regarding particular aspects of the evidence relied upon by the requesting state, I am mindful of the observation of La Forest J., speaking for the majority in Argentina v. Mellino, 33 C.C.C. (3d) 334, (S.C.C.), at p. 351, where he held that “[i]t would cripple the operation of our extradition arrangements if extradition judges were to arrogate the power to consider defences that should properly be raised at trial.”