(Received 14 September 1972; accepted 19 March 1973)
Published Online: October
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The proliferation of rapid office copiers has in recent years provided a new problem for Document Examiners. Not only is it possible to determine which of many processes was used to prepare a given copy, in many cases an individual machine can be identified as the one on which the copy was made. One of the more common types of office copiers, the xerograph machine, lends itself to these sorts of identification quite well. To establish that a copy was in fact made on a particular copying machine requires full analysis of the copy and the machine.
Chief document examiner, State Crime Laboratory, Atlanta, Ga.
Stock #: JFS10046J