All applicants must submit police certificates/clearances as part of the application process.
Note: Do not submit your police certificates to the CIO. If your application is placed into processing, you will be required to submit the police certificates to the Canadian visa office indicated on your application.
You and all of your family members who are 18 years of age and older and are not permanent residents or Canadian citizens will have to provide:
a valid police certificate, or
police clearance, or
record of no information.
These documents are to be provided for each country other than Canada, in which you have lived for six consecutive months or longer since reaching the age of 18.
Source: WWW.CIC.GC.CA /Applications Guides