Related Clues:

• P. D. alert
• Police call letters
• Alert from the NYPD
• Black-and-white alert, for short
• Alert akin to a BOLO
• Alert from the LAPD
• Alert about a flight, maybe
• L.A.P.D. alert
• Msg. for a squad car
• Five-O alert
• BOLO kin
• BOLO's kin
• Msg. for a cop car
• Police band transmission, briefly
• Police alert, briefly