C.R.S. § 1-13.5-507: Arrangement of voting machines or voting booths and ballot boxes.

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