But I don't get it, how can they just walk in you driveway and plant a device on your car? I can find more than just privacy being violated here, they modified his car and added a device to it, how is that not illegal?
To partake in life we expect people to walk on our property - mailman, paperboy, UPS guy, electric company. Because we freely allow access to our property to these things we cannot claim "privacy!!!!" when it involves the police.
The key here is that the device is on the car, not in it. Search warrant would be needed to put the GPS in the car, or put a microphone in the car. Outside of your car, no REP.
Regarding modification, the court is going to balance police needs and the modification. Placing a magnet to the underside of your car is not considered a substantial modification to the court. Sure, if the cops replaced your rear axle with a GPS equipped rear axl you probably have a good argument. But something as simple as a magnetic GPS on your quarter panel isn't going to get any sympathy from the judge.
Don't Fast Passes and the like already do this where possible?
Good luck with trespassing claims. Criminal trespass elements are not met, so no luck there. You probably don't have a civil trespass claim, either. Civil trespass is intentionally entering the property of another without justification to do so. The court just affirmed that placing GPS on a car is legal justification to enter the property. So you would lose on the trespass claim.
Of course that assumes it even sees the light of day in court. Civil claims take years to litigate and seeing that no actual monetary damage was done to the car the plaintiff is only entitled to nominal damages, perhaps $25 if he is lucky. Contrast that with thousands of dollars and many hours to litigate and this case is clearly a money losing proposition.
I am not saying I agree with it. This is just the current affairs in the US legal system.
Also, Fast Passes are RFID transponders. They are activated when you drive through the toll. No GPS is present. Don't forget that you explicitly consented to the placing of the device inside your car.
If the answer is anything other than "nothing," then brand-new police powers are being spun from whole cloth by this (lack of) ruling.
1. This case wasn't a ruling, nor is it a lack of ruling. It was an instance of a court refusing to re-litigate existing law. That means that it already ruled and does not feel that the law should be changed. Nothing happened here. No new powers can be created by not ruling. By definition nothing happens when refusing to hear a case.
2. Second reason no new powers were created: The 4th Amendment to the US Constitution protects against unreasonable searches and seizures. The 9th Circuit has interpreted GPS to not be an unreasonable search and seizure. Therefore the restriction on government never existed because the Constitution does not protect people against reasonable searches. The police power to install GPS devices on cars was not abolished when the 4th Amendment went into effect 220 years ago. No new powers because the power existed 220 years ago.
1. I am not an attorney. I am not your attorney.
2. I am not giving out legal advice, and nothing that I have said is even considered legal advice.
3. I have no idea what the law is in your jurisdiction because I do not know what jurisdiction you live in, and I most likely do not even know the law in your jurisdiction. There may be statutes specifically proscribing the conduct you describe. You need to research that yourself.
4. Nothing I wrote implies a person won't be charged with placing devices on police vehicles. I only commented on laws pertaining to police placing GPS devices on cars in open driveways in California through August 25, 2010.
The argument can be made that you can simply follow the police cars around and see them on public streets when they pull out of the police HQ - but that may be considered harassment or some other crime.