Hey, when i saY it- i mean it!
Read this "The certificate must have been issued no more than three (3) months prior to submitting your application. If the original certificate is not in English or French, then you will need to submit both the certificate and the original copy of the translation prepared by an accredited translator.
We will also do our own background checks to determine if there are grounds under which you and your dependants may be inadmissible to Canada"
and where ...here : http://www.cic.gc.ca/english/information/applications/guides/EP7TOC.asp
Open the link and read "Police Certificate section, paragraph 3
I am sorry to be direct TOO