mohammed.morsy said:
It'd make more sense if you complete the sentence: whichever is most recent
i.e. if you're over 28 at the time of application, then only the last 10 years count. If you're 28 (like me) then both are the same (last 10 years = since the age of 18). If you're younger, then only since you were 18 count. Cheers!
You may not be 100 % correct. I copied and pasted the text from CIC website
Who needs a police certificate?
In general, you and all the people in your family who are 18 or older need to get a police certificate. You must get one from each country or territory where you have lived for six or more months in a row since the age of 18.
The certificate must be issued no more than three months before you apply.
If your certificate is in a language other than English or French, send it when you apply, along with the original copy of a translation done by a certified translator.