the electronic evidence in the evidence substantiation of claim system

nowadays, technological development and the appearance of new informational and communicational devices have been lead to new methods for communication and generating and storing of data. the growth of using of these methods in commercial and daily connection has caused a new version of evidence called electronic evidence. although the nature of electronic and paper evidence are different, the electronic evidence fulfills the legal requirements for validity of evidence with technical methods. so, electronic commerce act (2003), equaling data message and electronic signature with handwriting signature as the same thing, recognizes electronic evidence as new form of evidence and equals it with paper instrument. in this paper, the features of electronic evidence and its validity are studied.