During the last decade issues connected with rapid development of phenomenon known all over the world as “computer crime” have been thoroughly studied. At present this concept (rather conditionally) includes all illegal actions when electronic processing of information was an object or means of committing them. Thus the problem now embraces not only crimes directly connected with computers but also such as fraud with credit magnet cards, crimes in the telecommunications sphere (fraud with international phone conversations payment), illegal usage of electronic payments bank network, illegal software, fraud in using play slot machines and many others. Crimes connected with using evidence of computer origin when investigating traditional...