Sparks served as the chief of the white collar crime division in the Eastern District of Kentucky for fifteen years, where he was responsible for all matters involving health care fraud, financial fraud, bank fraud, mortgage fraud, tax fraud, public corruption, cybercrime, environmental crime and civil False Claims Act cases.
As an Assistant United States Attorney, Sparks successfully prosecuted a broad range of criminal cases, from the early investigative stages through grand jury, trial and appeal. Sparks has tried nearly two dozen civil and criminal cases, including matters involving health care fraud, bank and mortgage fraud, tax fraud, and investment fraud. He served as lead prosecutor on several multi- month criminal trials and has argued over forty cases in the Sixth Circuit Court of Appeals. Sparks also served a detail at the Department of Justice’s Federal Programs Branch in Washington, D.C.
Sparks has been an adjunct professor at the University of Kentucky College of Law, where he taught classes in litigation skills and legal writing. Sparks has received commendations from numerous federal agencies, including the Department of Justice, the Department of Homeland Security, the Department of Health and Human Services, the Department of Labor, the United States Postal Service, the United States Bureau of Prisons, and the Internal Revenue Service.