New Jersey: How to Protect Yourself When Signing an Affidavit as a Witness in a Car Accident

The information on this site is for general informational purposes only, may be outdated, and is not legal advice; do not rely on it without consulting your own attorney. See full disclaimer.

Detailed Answer

What an affidavit is and why it matters

An affidavit is a written statement of facts that you swear under oath is true. In New Jersey, an affidavit can be used in civil cases, insurance investigations, or court proceedings as evidence. Because an affidavit is sworn, knowingly including false statements can expose you to criminal charges under New Jersey’s perjury and false swearing laws (see N.J.S.A. 2C:28-1 and related provisions).

Key legal risks in New Jersey

  • Criminal exposure: Making a knowingly false statement under oath may lead to prosecution for perjury or false swearing (N.J.S.A. 2C:28-1 et seq.). See the New Jersey Legislature for statutory text: https://www.njleg.state.nj.us/.
  • Civil consequences: Your affidavit can be used in a lawsuit. Inconsistent or inaccurate sworn statements can be attacked at trial and can undermine your credibility.
  • Insurance and administrative impacts: Insurers or agencies may rely on your affidavit in adjusting claims or taking administrative action.

How to protect yourself before signing

  1. Read the entire affidavit slowly and completely. Don’t sign anything you haven’t read. If something is unclear, ask for clarification or a rewrite.
  2. Limit statements to what you personally observed. Use phrases like “I saw,” “I heard,” or “In my view” only when factually accurate. Avoid repeating secondhand rumors or assumptions about fault.
  3. Avoid guessing or estimating when unsure. If you don’t remember a detail, say so: “I do not recall,” “I am not sure of the exact time,” or give a range rather than a precise number you might later contradict.
  4. Do not sign blank or incomplete documents. Never sign an affidavit that has blank spaces or missing paragraphs. Make sure every page is complete and matches the version you reviewed.
  5. Ask for time to review or take a copy. If someone asks you to sign on the spot, request a copy and time to review. Most people and agencies will allow this.
  6. Correct errors before signing. If you notice a mistake, cross it out (or have it amended), initial the change, or request a revised document. Signing with known errors can create problems later.
  7. Sign only in front of the proper official. Affidavits require a notary public or other authorized official to administer the oath. Make sure the notary completes the jurat or acknowledgment properly.
  8. Keep your own records. Retain a copy of the signed affidavit and any related photos, texts, or notes that support your statement.

What to say (and what not to say) in the affidavit

Use plain, factual language. Example phrasing for a witness to a car accident:

  • Do: “At about 3:15 p.m., I saw Vehicle A enter the intersection on a green light and Vehicle B run the red light, striking Vehicle A on the driver’s side. I was standing on the northwest corner of the intersection about 20 feet away.”
  • Don’t: “I think the driver of Vehicle B was driving recklessly and is entirely at fault.” (Fault is often a legal question best left to investigators or the court.)

If you discover an error after signing

  1. Contact the requester immediately. Inform the lawyer, insurer, or party who has the affidavit and explain the mistake.
  2. Prepare a corrected affidavit or affidavit of clarification. A supplemental sworn statement that explains and corrects the error is often appropriate.
  3. Keep proof of the correction request. Save emails, certified mail receipts, or other records showing you sought to rectify the record promptly.

When to consult an attorney in New Jersey

Speak with a lawyer if any of the following apply:

  • You are unsure whether your statement could admit fault or liability.
  • You were asked to sign an affidavit that contains legal conclusions or language you don’t understand.
  • You believe someone is asking you to provide a false statement or to withhold information.
  • You later receive notice of criminal or civil action connected to the accident.

How courts and lawyers treat affidavits in New Jersey

An affidavit is evidence but not the same as live testimony. The opposing party may challenge it based on inconsistencies, lack of personal knowledge, or credibility. If the matter goes to trial, you may be required to testify live under oath and may be cross-examined about what you said in the affidavit.

Hypothetical example

Hypothetical facts: You witnessed a T‑intersection crash at 4th Street and Maple Avenue. You saw a red sedan strike a stopped SUV while turning. You weren’t near either vehicle and didn’t hear any horn.

Protected approach: Prepare a short affidavit describing only what you saw: approximate time, your location, vehicle colors and movements, and any visible signals (e.g., brake lights). Avoid attributing motive or impairment (e.g., “the driver was texting” or “driver was intoxicated”) unless you actually observed those facts. Keep copies and note how you arrived at any time estimates.

Statutes and rules (where to read more)

Criminal perjury and false statement statutes apply when you make sworn statements. See New Jersey statutes via the official Legislature website: https://www.njleg.state.nj.us/ (search for N.J.S.A. 2C:28-1 for perjury and related provisions).

Summary

Protect yourself by telling only what you personally observed, avoiding speculation, reading the full affidavit carefully, refusing to sign blanks, correcting errors promptly, and retaining copies. When in doubt about legal consequences or whether your statement may admit fault, consult an attorney.

Disclaimer: This article is for informational purposes only and is not legal advice. It does not create an attorney-client relationship. If you need legal advice specific to your situation, contact a licensed New Jersey attorney.

The information on this site is for general informational purposes only, may be outdated, and is not legal advice; do not rely on it without consulting your own attorney. See full disclaimer.