Just after leaving the Caldicott tunnel heading towards San Francisco on 24 West … past the 13 freeway loop, there is sometimes a patrol officer sitting on a motorcycle with a hand held radar detector and a communication device on his helmet. As the road turns to the right, he is hiding in the blind spot to the right side of the road. He is invisible until you are about two blocks from him. If you are speeding down this rather sharp decline, the officer will contact a patrol car parked about 1/4 down the highway at the Telegraph ave. exit. He will persue with his lights on and issue a ticket. 70 mph is acceptable… anything more is a violation.