According to United States of America v. Ferras, 2006 SCC 33 at para. 53, under s. 32(1)(c), a person sought may adduce evidence if it is relevant to the issue of committal - i.e., whether the ROC is sufficient and reliable enough to justify extradition. And the evidence may be admitted if it meets the standard of threshold reliability (i.e., it possesses sufficient indicia of reliability to make it worth of judicial consideration) even if it would not normally meet Canadian evidentiary rules.
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