If you've ever been driving and saw one of the "patrolled by aircraft" signs and thought the signs were just a scare tactic to slow drivers down, think again.
It's not a bird, it's a plane and most likely your next speeding ticket from the California Highway Patrol's friendly skies.
"It's not a bluff," said flight officer Chris Werner.
Two planes patrol state highways from LA county to San Jose county. CHP officers say they write about 1,000 tickets per plane, per year, just from the eye in the sky.
Basically, it's a stopwatch that does it.
"Basically I use the aircraft to pace the vehicle for a one mile mark, and then I use the stopwatch to convert the aircraft speed to ground speed," said Werner.
Then the flight officer radios to a partol car on the ground.
"I bring the patrol officer up to the car say that is the vehicle to the left of you and then he'll position behind the vehicle, and I'll say 'you'r