C.R.S. § 13-25-133

(1) Except as provided in subsection (3) of this section, the contents of any communication made directly or indirectly through a telecommunications device for the deaf (commonly known as TDD) or teletype (commonly known as TTY) and any writing or recording resulting from the communication are inadmissible as evidence of the existence or contents of the communication in any court of law, legal proceeding, or administrative hearing. (2) For the purposes of this section, “telecommunications device for the deaf or teletype” means any auxiliary aid or service consisting of listening or transcription systems that allow the reception or transmission of aurally delivered communication and materials for the benefit of individuals with hearing, speech, or physical impairments. (3) The provisions of this section do not apply to any communication intercepted pursuant to a lawful court order.