sentences:  Colburn previously served on the Judicial Proceedings Committee from 1995–2003; the Special Committee on Substance Abuse from 2001 until 2003.In 2004, he served on the Senate Special Commission on Medical Malpractice Liability Insurance and from 2006 until 2006, served on the Agricultural Stewardship Commission.Colburn was the Senate Chair of the Eastern Shore Delegation, a committee he served from 1999 - 2015.