The Eighteenth Judicial District includes Arapahoe, Douglas, Elbert & Lincoln Counties. There are 44 judicial officers in the Eighteenth Judicial District and five court locations.

Colorado has 22 judicial districts for which the district attorney for each is elected to the position. 

The current district attorney is Carol Chambers.

http://www.da18.org/

November 6, 2012, George Brauchler was elected over Ethan Feldman:

http://www.denverpost.com/breakingnews/ci_21947503/republican-george-brauchler-wins-by-7-points-arapahoe