I agree with primetime. Radar/laser detectors like the windshield mounted Passport and V1 are not going to really protect you if the cop is using laser. They work just fine for Radar, but most of the cops that park on the side of the road are using laser these days. If you want the best protection, you need a V1 or Passport and a jammer. Some people like the Passport with the built-in jammer as well.

If the cop is using laser, the V1 and Passport are nothing more than ticket notifiers most of the time. By the time they go off, the cop most likely has a reading on you.