New Jersey Proof of Witness is a type of official documentation that is provided to demonstrate that a witness was present in a court proceeding or legal transaction. It is typically used to prove that an individual participated in an event or transaction that occurred in the state of New Jersey. The documentation is provided by a court clerk or other official and is signed by the witness. It contains the names of all parties involved in the legal transaction, the date of the transaction, and a sworn statement from the witness that they were present. Types of New Jersey Proof of Witness include an Affidavit of Witness, an Affirmation of Witness, and a Certificate of Witness.