Answer:

apb

Answer	Crossword Clue
APB	Police alert
APB	Police call letters
APB	Cop call

APB	P.D. broadcast
APB	Alert about a fugitive, perhaps, briefly
APB	PD alert
APB	Police advisory
APB	LAPD alert
APB	NYPD alert
APB	Lookout letters
APB	Urgent PD message

APB	Alert from a P.D.
APB	P.D. alert
APB	P.D. transmission
APB	PD announcement
APB	PD dispatcher's announcement
APB	Black-and-white broadcast?
APB	Dispatcher's announcement: abbr.
APB	PD broadcast

APB	PD heads-up
APB	Black-and-white broadcast?: Abbr.
APB	Widespread PD alert
APB	Another term for a BOLO ("Be on the lookout")
APB	"Dragnet" dispatch, for short
APB	LAPD advisory
APB	NYPD broadcast
APB	Dragnet letters

APB	Urgent call, briefly
APB	LAPD announcement
APB	Alert after a heist, maybe
APB	LAPD broadcast
APB	Statewide call, maybe
APB	Widespread LAPD alert
APB	Police broadcast, briefly
APB	SFPD broadcast

APB	911 call follow-up, perhaps
APB	Police dept.'s "Be on the lookout!" alert
APB	Manhunt msg.
APB	Police alert, for short
APB	Arrest request, possibly