Charles only has a photocopy of his written contract with Jenny,and not the original.Under the best evidence rule,since Charles only has a photocopy,it is the 'best evidence' the court can accept in his trial.

The best evidence rule requires the presentation of the original document, unless it is lost or destroyed, in which case secondary evidence (such as a photocopy) may be admitted. However, the party offering the secondary evidence must provide an explanation for the absence of the original document.