sentences:  Prior to being elected to the Maryland State Senate, Colburn was a member of the Maryland House of Delegates.While serving in the House, he was a member of the Constitutional and Administrative Law Committee from 1983–86, the Environmental Matters Committee from 1987–91, and a member of the Governor's Committee on Employment of the Handicapped from 1984 until 1990.In addition, he was also on the Lead Poisoning Prevention Commission.