Colonel Shull spent 44 years serving with the Federal government. That encompassed 28 plus years in the United States Army, from which he retired as a Colonel in the Judge Advocate General’s Corps. He also served over 15 years in the Executive Office of the President, White House Office of National Drug Control Policy.
During his military career, he served at the Department of the Army level, in the Office of the Secretary of Defense, in the Office of the Commander of U.S. Army, Europe, and as the senior legal advisor in numerous major military commands. In the White House Drug Policy Office, he served as the Deputy General Counsel and the Deputy Assistant Director for Management and Administration. In those positions, he provided key advice for international, administrative and acquisitions law and was responsible for physical security, classified document security, personnel, and various administrative functions.