What information should NOT be included regarding the identity of the principal?

The fingerprint of the principal should not be included when documenting the identity of the principal. While a notary public must verify the identity of the individual signing a document, they typically do so through identification methods like a government-issued photo ID or other forms of identification that clearly show the person's name, photograph, and signature.

Including a fingerprint is not standard practice and is generally not required or requested within the scope of typical notarial acts in Illinois. This method of identification can be seen as invasive and unnecessary, especially considering there are already established and accepted identification methods that provide sufficient assurance of identity.

On the other hand, the full name, birthdate, and signature of the principal are fundamental components of identification in notarial practices. These pieces of information help establish the identity of the individual and ensure that the documents being executed are valid and correspond to the correct person.