(Received 11 January 1978; accepted 15 April 1978)
Published Online: October
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Among the chemical reagents that are currently used for the development of latent fingerprints on paper, ninhydrin is undoubtedly the most common . Yet the ninhydrin method suffers from several disadvantages because the reaction is slow and requires heat for complete development. Sometimes the method is misleading because of background reactions [1,2], and not all individuals excrete sufficient perspiration to leave latent prints identifiable with ninhydrin .
Deputy head, Israel Police Headquarters, Jerusalem,
Lecturer in applied chemistry, The Casali Institute of Applied Chemistry, The Hebrew University, Jerusalem,
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