I read the below from the cic website: Home > Police certificates
Who needs a police certificate?
In general, you and everyone in your family who is 18 years of age or over need to obtain a police certificate. You must obtain a police certificate from each country or territory where you have lived for six consecutive months or longer since reaching the age of 18.
The certificate must have been issued no more than three months before you submit your application.
If the original certificate is neither in English nor in French, submit both the certificate and the original copy of a translation prepared by an accredited translator with your application.