An APB alert, short for all-points bulletin, is an internal law enforcement broadcast that pushes a description of a suspect, vehicle, or missing person out to officers across a department and often to neighboring agencies, so patrol units can watch for the subject and respond quickly. It is a tool police use to talk to each other. It is not a notification sent to the public, and you will not receive one on your phone.
BOLO and ATL Mean the Same Thing
If you hear an officer mention a “BOLO” (be on the lookout) or an “ATL” (attempt to locate), that is the same type of alert. Different departments and regions prefer different terms, but the function is identical: get a description of a person or object in front of as many officers as possible, as fast as possible. The word you encounter depends on which agency is speaking, not on any difference in urgency or scope.
When Police Issue an APB
APBs are reserved for situations that demand immediate, wide attention. The most common trigger is a suspect in a serious crime who remains at large, especially after a violent offense where the person is considered dangerous. An agency will also issue one to locate a stolen vehicle or one used in a crime. Missing-person cases can prompt an APB too, particularly those involving children or adults with cognitive impairments, though those cases often set off separate public alert systems at the same time.
The decision usually sits with a supervising officer or dispatcher who judges the situation urgent enough to broadcast. Not every crime qualifies. A shoplifting report where the suspect walked away calmly probably will not generate one. An armed robbery where the suspect fled in a described vehicle almost certainly will.
What an APB Contains
The value of an APB depends on the quality of the description it carries. For a person, the bulletin includes whatever identifying details are available: name or known aliases, height, weight, hair and eye color, distinguishing marks like tattoos or scars, and clothing. For a vehicle, it covers make, model, color, license plate number, and anything distinctive such as visible damage or bumper stickers.
Beyond the physical description, the bulletin communicates the nature of the incident, the subject’s last known location or direction of travel, and any warning about weapons or violent behavior. That last detail shapes how responding officers approach. An APB about an unarmed missing teenager produces a very different response than one describing an armed robbery suspect heading westbound on a highway.
How the Alert Reaches Officers
Older APB systems ran on radio broadcasts to patrol cars and teletype messages between stations. Today, officers mostly receive the information through mobile computer terminals in their vehicles. The message is equivalent to a radio broadcast but searchable and persistent, so when radio channels are congested the bulletin still reaches everyone who needs it.
The NCIC Database
At the national level, the infrastructure behind cross-jurisdiction alerts is the National Crime Information Center, or NCIC. It is a computerized index of criminal justice information covering fugitives, stolen property, missing persons, and more, run under the FBI’s Criminal Justice Information Services Division. It operates around the clock and is accessible to federal, state, and local law enforcement.1Federal Bureau of Investigation. About the CJIS Division
The federal authority for the system comes from a statute directing the Attorney General to acquire, classify, and preserve criminal identification records and missing-person information, and to exchange those records with authorized officials at every level of government.2Office of the Law Revision Counsel. 28 USC 534 – Acquisition, Preservation, and Exchange of Identification Records and Information
The database is organized into specific files: stolen vehicles, stolen license plates, stolen boats, stolen guns, stolen articles, wanted persons, missing persons, foreign fugitives, and more. When a local agency enters a stolen vehicle or wanted-person record, officers in any participating jurisdiction can query it instantly during a traffic stop or field encounter.1Federal Bureau of Investigation. About the CJIS Division
Accuracy matters here. The FBI’s CJIS Security Policy requires agencies to maintain quality assurance procedures so that only complete, accurate, and valid information stays in the system.3Federal Bureau of Investigation. Criminal Justice Information Services (CJIS) Security Policy Oversight runs through each state’s CJIS Systems Agency, which handles quality assurance, training, and enforcement of operating procedures within its jurisdiction.4Federal Bureau of Investigation. The CJIS Advisory Process
An APB Is Not the Alert on Your Phone
One of the most common points of confusion is the difference between an APB and the public alerts that reach your cell phone. An APB goes to officers, not civilians. The information generally is not published for public consumption.
Public alerts work on separate channels. AMBER Alerts notify the general public when a child has been abducted and is believed to be in danger. Silver Alerts, which most states now operate, broadcast information about missing adults with cognitive conditions like Alzheimer’s disease or dementia. Blue Alerts warn the public when a suspect who has killed or seriously injured a law enforcement officer is at large. These push notifications to cell phones, highway message signs, and media outlets. An APB does none of that.
The two systems can run in parallel. A missing child case may generate both an internal APB to law enforcement and a public AMBER Alert, but they travel through completely separate channels and serve different audiences.
What Happens When Officers Spot an APB Subject
The response depends heavily on what the subject is wanted for. An officer who spots a vehicle matching a stolen-car description will typically call for backup and conduct a standard traffic stop. When the APB involves a violent or armed suspect, the approach shifts to a high-risk or felony stop, where officers keep distance from the vehicle, wait for additional units, and direct occupants out of the car from behind cover.
Coordination is the central challenge. Officers from different departments may respond to the same APB, and they do not always train together or follow identical procedures. Agencies emphasize establishing a common plan before initiating contact, particularly during multi-jurisdiction responses where assumptions about tactics can be dangerous.
The Legal Basis for Stops Based on an APB
A 1985 Supreme Court decision set the framework for stops based on APBs and similar bulletins. In United States v. Hensley, the Court held that if a wanted flyer or bulletin was issued based on facts supporting a reasonable suspicion that the person committed an offense, officers from other departments can lawfully rely on that bulletin to make an investigative stop. The agency that issued the bulletin must have had reasonable suspicion, and the stop itself cannot be more intrusive than what the issuing agency would have been permitted to conduct.5Justia Law. United States v Hensley, 469 US 221 (1985)
So an APB alone does not grant unlimited authority. A bulletin based on a vague hunch rather than specific facts would not support a lawful stop, and a stop that escalates beyond what the circumstances justify can be challenged. If your car happens to match an APB description, officers are legally permitted to detain you briefly to investigate. Qualified immunity, though, makes it difficult to pursue civil claims over a brief, good-faith stop that turns out to be mistaken identity.
If You Are the One Being Stopped
If police pull you over or detain you because you or your vehicle match an APB description, the experience can be jarring, especially during a high-risk stop where officers may draw weapons and order you out of the car. Officers conducting these stops are not required to explain what is happening in the moment, and they have broad authority to detain you briefly while they verify whether you are the person described.
Comply with instructions, keep your hands visible, and avoid sudden movements. Once officers confirm you are not the subject of the APB, you should be free to go. If you believe the stop was conducted improperly or lasted longer than was reasonable, document the details afterward. Courts give officers significant latitude when they act in good-faith reliance on a bulletin issued by another agency, as the Supreme Court made clear in Hensley.5Justia Law. United States v Hensley, 469 US 221 (1985)