The primary functions of a NSW JP are to:
Witnessing a person making a statutory declaration or affidavit involves receiving the person's declaration, oath or affirmation that the contents of the document are true and correct, and witnessing the person's signature on the document.
The law authorises certain people, including JPs, to perform this function. The purpose is to provide independent verification that the signatory provided the information under oath or affirmation and signed the document himself or herself. This may be very important to a court, a government agency or any other organisation that needs to rely on a document.
Another common function of a JP is to certify a copy of an original document, if satisfied that it is a true and accurate copy of the original. A certified copy may sometimes be accepted, instead of the original document, by an organisation that wishes to reply on information contained in the original.
Further information about the duties of a JP can be found at the following sources: