A Blue Alert is a public safety alert that is sent out by the Colorado Bureau of Investigation (CBI) to notify the public immediately of the imminent danger posed by a suspect(s) who have killed or seriously injured a peace officer. The Blue Alert Program was enacted in November 2011, when then-Governor John Hickenlooper signed it into law. The program is a cooperative effort among the CBI, local law enforcement agencies, and the states public and media.

When a peace officer is killed or seriously injured in a crime, the local law enforcement will notify CBI and request the alert be sent out. The CBI will then verify the accuracy of the information and send it to media outlets in the state. The Blue Alert may be broadcast to the public as often as possible, and it is recommended to rebroadcast every 15 minutes the first two hours, then every 30 minutes. The cancellation of the Blue Alert broadcast shall be the responsibility of the CBI.

Blue Alerts are not commonly sent out to the community, but the alert has been in effect since 2011. Colorado is the 13th state to implement the Blue Alert Program, and there are currently 37 states with Blue Alert plans. The National Blue Alert Network supports the use and integration of Blue Alert plans throughout the United States in order to rapidly disseminate information to law enforcement agencies, the media, and the public to aid in the apprehension of violent criminals who have killed or seriously injured an officer in the line of duty.