I don't know for sure, but I would think she needs to have a Canadian criminal record check if she was in Canada for more than 6 months in a row last year as the document request says:
"If not yet submitted: Original police certificates from each country in which you have spent 6 consecutive months or more since the age of 18. For instructions on how to obtain police certificates for specific countries, click here: [CIC link removed for post]. If you are unable to submit police certificate(s) within the 30 day deadline, submit proof of having applied for the certificate with your package."
I can't post the link, but on the CIC website, it says what you have to do to get the Canadian certificate.