4.2 Personal Knowledge

What Personal Knowledge Means

Utah Code 46-1-2 defines "personal knowledge of identity" as "familiarity with an individual resulting from interactions with that individual over a period of time sufficient to eliminate every reasonable doubt that the individual has the identity claimed." The phrase "every reasonable doubt" is the key — this is a demanding, near-certainty standard, not a gut feeling.

Break the definition into four testable parts:

When all four are met, personal knowledge is a complete, stand-alone method. You do not also need to inspect a driver's license. This is its main advantage: a long-time coworker who forgot her wallet can still be notarized if you genuinely know her.

Qualifies vs. Does Not Qualify

The distinction the exam draws repeatedly: recognition is not knowledge. You may recognize a famous athlete or a person you have seen at the gym, but you do not know them well enough to swear to their legal identity.

The Court Test

The practical filter is one question:

"Could I stand in a court of law and swear under oath that I personally know this person and am certain of their identity?"

If you hesitate even slightly, you do not have personal knowledge — request a qualifying ID or use a credible witness. This matters because if a notarization is later challenged for fraud, the notary may be subpoenaed to explain the basis for identifying the signer. "I was pretty sure it was him" is not a defense.

When to Request ID Even Though You "Know" Them

Best practice (not a legal mandate, but exam-favored) is to ask for ID anyway when:

• You have not seen the person in years and appearance may have changed
• The signer's appearance has changed dramatically (illness, weight, surgery)
• The transaction is high-value or high-risk (deeds, powers of attorney, large financial instruments)
• You feel any flicker of doubt about identity

Worked scenario: A man says he is your old high-school classmate "Dave Miller," whom you have not seen in 20 years, and asks you to notarize a quitclaim deed transferring his mother's house. Even if he looks familiar, two decades have passed and the stakes are high. Personal knowledge is shaky here — request a current photo ID or a credible witness before proceeding.

Documenting Personal Knowledge

Your journal entry should read "identified by personal knowledge" in the place where you would otherwise describe an ID. You are not required to list an ID number you never examined. Be prepared, if questioned later, to explain the relationship and history that gave you that knowledge.

Why the Bar Is Deliberately High

The phrase "every reasonable doubt" sets a stricter standard than the everyday meaning of "knowing" someone. The legislature drew the line this high because personal knowledge produces no physical record — there is no ID number, no expiration date, nothing for an investigator to re-examine later. The only evidence that the signer was correctly identified is the notary's own credibility on the witness stand. A notary who treats personal knowledge loosely is, in effect, betting their commission and reputation on a hunch.

Contrast this with documentary identification. With a driver's license, an auditor can pull the card description from your journal and verify it against state records. With personal knowledge, the audit trail is entirely inside your head. That asymmetry is exactly why the exam stresses the high bar and the court test.

Common Exam Traps for Personal Knowledge

Watch for these distractor patterns the Utah exam uses:

• "I recognize them from TV/social media." Recognition of a public figure is never personal knowledge — there is no two-way history of direct interaction.
• "We met once at a conference last month." A single recent meeting fails the "interactions over time" element no matter how memorable.
• "They showed me their license, and I also kind of know them." This is fine — but the identification is by document, not personal knowledge. Don't conflate the two in your journal.
• "My spouse vouched that it's really them." A third party vouching is the credible witness method, not personal knowledge. Personal knowledge must be the notary's own.

Quick Decision Flow

When a signer claims you should "just know" them, run this sequence: (1) Have we interacted repeatedly over time? If no, stop and ask for ID. (2) Could I swear to their identity under oath today? If you hesitate, stop and ask for ID. (3) Has anything (long absence, dramatic change, high-stakes document) raised doubt? If yes, ask for ID even though you technically qualify. Only when all three clear do you proceed on personal knowledge alone and note it in the journal.