Prior to becoming a criminal defense attorney, Brian Butler was a federal prosecutor in the United States Attorney's Office in Louisville, Kentucky. Mr. Butler is also a former chief state prosecutor in the Commonwealth Attorney's Office in Louisville. Mr. Butler supervised a unit with multiple attorneys responsible for prosecuting everything from white collar fraud to capital murder. Prior to relocating to Louisville, Brian Butler was a United States Navy Judge Advocate (JAG) where he served both as a military prosecutor and a military criminal defense attorney.

Aside from significant criminal litigation experience both as a criminal defense lawyer and as a federal, state and military prosecutor, Brian Butler is also an adjunct professor at Brandeis Law School (University of Louisville) where he periodically teaches trial skills and criminal procedure. As a prosecutor, Mr. Butler was an adjunct faculty member at the National Advocacy Center in Columbia, South Carolina where he taught trial skills to prosecutors from throughout the United States.