A Jackson affidavit is a term that is named after the 1992 case Jackson vs. New York. The term is often used in New York courts to describe a situation in which a document that is requested in discovery is confirmed to have been searched for and not found. The confirmation is done via an affidavit.

A Jackson affidavit should contain information that states where the requested documents are kept, who maintains the documents, a description of the documents, and the measures taken to locate the documents.

Steno Briefs:
Jackson = JAFN
affidavit= AFD