C.R.S. § 31-10-608

(1) If, at any regular or special election, any voter declares under oath to the judges of election of the precinct where he is entitled to vote that, by reason of blindness or other physical disability or inability to read or write, he is unable to prepare his ballot or operate the voting machine without assistance, he is entitled, upon his request, to receive the assistance of any one of the judges of election or, at his option, of any qualified elector of the precinct selected by the disabled voter. No person other than a judge of election in the precinct is permitted to enter the polling booth as an assistant to more than one voter. (2) A notation shall be made in the pollbook opposite the name of each voter thus assisted stating that the voter has been assisted.