@ernieboy take for example yung sakin. Born sa pinas then nag work sa SG.
I provided an NBI Clearance for my Pinas residency, and SG Police Clearance for Singapore residency.
May mga kapatid din tayo dito that stayed more than 12 months (in the last 10 years) let say sa Malaysia, Saudi, UAE.. Pati iyon kinuhaan nila ng police clearance.
In my opinion lang, police clearance is one of the requirements that takes quite some time to acquire - so mas maganda na prepared ka and available ang mga ito.
Whether you acquire your NBI clearance abroad (to where you are residing now via the philippine embassy) or sa Pinas - either way would work. If nakapag process ka ng NBI clearance online after 2016 (yata di ako sure) - you can just renew your NBi clearance again online. mas mura, less hassle.