Thomas Harms

From 1999 to 2023, he served as a Senior Forensic Auditor with the Bureau of Alcohol, Tobacco, Firearms and Explosives in Houston, Texas, where he conducted complex financial analyses of businesses and individuals in support of criminal investigations and prosecutions.

Before joining ATF, Thomas spent 14 years with the Internal Revenue Service as a Revenue Agent, performing audits of corporations, partnerships, and sole proprietors to ensure compliance with federal tax laws. His diverse experience also includes statistical research and management analysis of internal processes.


Thomas earned his Master of Science in Accounting/Taxation from the University of New Orleans and his Bachelor of Science in Business Administration with a major in Accounting from the University of Louisiana, Lafayette. He is a Certified Public Accountant (Louisiana, 1986, not active).

Throughout his career, Thomas has worked on a variety of criminal cases to include arson for profit, mail fraud, wire fraud, tax fraud, bank fraud, securities violations, illegal ownership of firearms and bombings.  Thomas has also provided testimony in federal and state courts, grand jury, and other judicial hearings, as necessary.  His extensive training includes advanced courses from the ACFE, AICPA, and numerous federal law enforcement agencies in areas such as fraud examination, money laundering investigations, and forensic audit techniques.

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