Based on IRCC website:
For any other country
For any
other country, the police certificate must be issued
after the last time you stayed there for
6 months or more in a row.
Some countries put
expiry dates on their police certificates. If you have a police certificate that expired, include it. We’ll accept it if:
- it was issued after the last time you stayed there for 6 months or more in a row
- it is not for the country where you currently live
An officer may ask for a new one later on.
So, you can request for PCC from your home country now if you are not planning to travel back and stay for more than 6 months. But there is always the chance that the officer requests for a new one. For me he/she didn't.