No its needed for the CFO. My wife just did it and she needed police clearance.
My wife lives in Cebu city and got it there. I'm not sure about where you're wife would go as I'm not familiar with that region.
Make sure you're fiancée states its for travel abroad. The fee is slightly more expensive because of this.
This may help:
http://faq.ph/how-to-get-a-police-cl...e-philippines/