You're misinformed. It's actually based on Whitfield v. Board of County Commissioners of Eagle County, 837 F. Supp. 338 (D. Colo. 1993).
As a quick summary... a class action suit filed on behalf of 400 individuals that asked the court to halt racially based stops by the Eagle County Sheriff's Department highway drug interdiction unit. Traffic infractions were cited as the reason for stopping the motorists, but tickets were not issued. The court ruled that investigatory stops based solely on a motorist's match with specified drug courier indicators violated the fourth amendment's prohibition against unreasonable seizures.
24-31-309. Profiling - officer identification - training.
(4) (a) A peace officer certified pursuant to this part 3 shall provide, without being asked, his or her business card to any person whom the peace officer has detained in a traffic stop, but has not cited or arrested. The business card shall include identifying information about the peace officer including, but not limited to, the peace officer's name, division, precinct, and badge or other identification number and a telephone number that may be used, if necessary, to report any comments, positive or negative, regarding the traffic stop. The identity of the reporting person and the report of any such comments that constitutes a complaint shall initially be kept confidential by the receiving law enforcement agency, to the extent permitted by law. The receiving law enforcement agency shall be permitted to obtain some identifying information regarding the complaint to allow initial processing of the complaint. If it becomes necessary for the further processing of the complaint for the complainant to disclose his or her identity, the complainant shall do so or, at the option of the receiving law enforcement agency, the complaint may be dismissed.