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9780849307096
John Madinger is a Senior Special Agent with the Criminal Investigation Division of the Internal Revenue Service. In his 25-year law enforcement career, he has also served as a narcotics agent, supervisor, and administrator. He earned a Bachelor's degree in Criminal Justice from Indiana University.John Madinger is the author of 'Confidential Informant: Law Enforcement's Most Valuable Tool', published 1999 under ISBN 9780849307096 and ISBN 0849307090.
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