An Affidavit of a Lost Document or Certificate is a sworn statement used to declare that an important document, such as an ID card, title deed, academic certificate, or official record, has been misplaced, lost, or destroyed. This affidavit provides legal proof of the loss and is often required when seeking a replacement, reporting to authorities, or protecting against potential misuse of the lost document. It must be sworn before a Commissioner for Oaths or Notary Public to be legally valid.