C.R.S. § 31-10-505: Arrangement of voting machines or voting booths and ballot boxes.

The voting machines or the voting booths and ballot box shall be situated in the polling place so as to be in plain view of the election officials and watchers. No person other than the election officials and those admitted for the purpose of voting shall be permitted within the immediate voting area, which shall be considered as within six feet of the voting machines or the voting booths and ballot box, except by authority of the judges of election, and then only when necessary to keep order and enforce the law.