http://www.justiceforhassandiab.org/wp-content/uploads/2011/03/CUPW_to_Nicholson_Mar2011.pdf
“... Recently, the court refused to exclude “very problematic” and “very confusing” handwriting evidence against Dr. Diab, saying that Canadian standards of evidence do not apply in an extradition case.
The court also refused to admit finger and palm print evidence. The court dismissed it as “competing inference” – which is not allowed in an extradition case.
CUPW believes that in any extradition case, the court must ensure there is sufficient and reliable evidence to support the request...”