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At the National Academy of Sciences' polygraph review panel's public meeting last October, Dr. Drew C. Richardson likened having the Department of Defense Polygraph Institute in charge of federal polygraph research to having big tobacco in charge of cancer research.
A recent incident at DoDPI helps to illustrate the point. Michael Ravnitzky, a journalist based in Washington, D.C., has documented that the DoDPI library, with the active support of the Defense Security Service's Freedom of Information Office, destroyed polygraph-related videotapes in order to prevent them from being obtained by the public under the Freedom of Information Act. Such willfull destruction of records is reprehensible for any government agency to engage in, let alone the library of what purports to be a research institution.
See Mr. Ravnitzky's essay, "Destruction of Records and Personal Attack on Journalist by Defense Security Service" and the supporting documentation linked there: