The Development of Latent Fingerprints with Ninhydrin

David A. Crown, M.Crim., is a Questioned Document Analyst, with the federal government. Mr. Crown has served previously as Assistant Director of the San Francisco Postal Identification Laboratory where much of the research for the present article was conducted. He received his Masters Degree in Criminology from the University of California, Berkeley, and is continuing his graduate studies toward his doctorate at this institution. Mr. Crown is currently Secretary of the Questioned Document Section of the American Academy of Forensic Sciences.-EDITOR.