The police alerted other officers stationed farther along the highway, who stopped the car, looked inside and saw a package of cocaine on the floor.

Despite being fatally shot, Johnson was able to push an emergency button in his patrol car, which alerted officers of the situation.

An anti-crime officer at the scene heard the shots and chased the suspect while alerting other officers, an investigator said.

Another passenger from the flight was placed in handcuffs after a dog alerted officers to his carry-on luggage; he was searched, and released without charges.

The operator can then alert other officers to stop the vehicle.

Officer Tuccio sent a message by police radio to alert other officers to look for the victim.

The Minister - this Minister - replied:' Warning signals are intended to alert officers to potential difficulties or risks in dealing with the individual.

Earlier they searched his car, and one of the dogs alerted officers to two plastic shopping bags inside, the investigator said.

As the officers pursued the suspect, they alerted other officers to where batches of bills were fluttering to the pavement and, eventually, $4,105 was recovered.

The gunman fired wide and continued down the stairs as Mr. King radioed for help and alerted officers throughout the building.