By Audra Streetman

BOULDER, Colo. (CBS4) – The Boulder Police Department is asking for the public’s help to identify a person accused of taping white envelopes to the front doors of sorority and fraternity houses.

Investigators said each envelope contained a CD with audio from the Criminal Minds television show.

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(credit: Boulder Police Department)

Police said the envelopes were taped to the doors around 1:30 a.m. on Monday. Officers are investigating to determine if criminal charges apply.

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(credit: Boulder Police Department)

Anyone with information about the incident is asked to call the Boulder Police Department at 303-441-3333 reference case 21-1367.

(credit: Boulder Police Department)

Tipsters can also remain anonymous by calling the Northern Colorado Crime Stoppers at 1-800-222-TIPS (8477) or visiting

Audra Streetman