In the blue strobe of the state police cruiser's lights, they both threw up everything available.

What looked like a line of police cars was parked along the top, with blue strobes flashing enthusiastically.

The driveway and courtyard were a snarl of vehicles parked at random angles, bar lights flashing eerie blue strobes through the night.

Both vehicles are registered ambulances and are fitted with blue strobes.

Steel followed it until the slow-motion blue strobe of a patrol car's lights marked the entrance to the car park.

Anxious faces peered from behind the glass of neighbouring windows, and were irradiated by the blue strobes.

A blue strobe high up outside started flashing and an urgent electric bell started ringing.

Tovera had stuck a blue strobe into the berm, a signal to draw the rest of the assault force, but there wasn't time to wait for them.

Just as Ngong closed the small door she caught a glimpse of the surviving police cars leaping the swing bridge, their blue and red strobes flashing.

With their flashing red and blue strobes, the blacked-out Tahoes looked one hundred percent authentic.