One of the biggest duties we have as notaries is to properly identify a signer. We are held responsible, even if we unintentionally accept a fake ID.
The best tool to prevent this is to have a black light handy. This light will illuminate hidden images on an ID, helping identify its validity.
I.D. Checking Guide
Say hello to your new best friend. This guide is a great investment particularly when you get ID's from different states.
All it takes is one fake ID to get you into a world of trouble.