Primary documentary evidence means the document produced before the court in its original form. It consist of the following:
Document executed in several part are original as each part constitute primary evidence of the document. For instance duplicate copy document.
Document executed in counterpart with each counterpart executed by one or some of the parties, such counterpart will constitute primary evidence against the parties executing it.
Also, all document made by one uniform process whether of electronical or mechanical process will constitute primary evidence of the content of the rest. For instance, documents made through printing, lithography, photography are original document. Section 86(1-4) Evidence Act, 2011. Esso (WA) Ltd. V. Oladuti (1968) NWLR 353; Abed Brothers Ltd. Niger Insurance (1976) NNLR 1. However, document made from a common original does not constitute primary evidence of the content of the original.