Nope - the "detection" of frequencies is also illegal.
So knowing which Gatso is emitting and which isn't is illegal. Thats why there was the sudden jump to GPS based ones around 2003/5.
I can tell you for fact from conversations with Traffic buds that you WILL be prosecuted on "the basis of obstruction and perversion of the course of justice" if you have an active device. Hants have done several in the last year or so as well as seizure of the vehicle, full forensic examination by a vehicle examiner, removal and destruction of any such equipment found and costs associated with the previous - even if there is NO prosecution for the device afterwards and that can include a custodial sentence.
Best combo in the UK is a bloody good updateable GPS with something like the LT450 up front. Just make damn sure you have the "home" section of the system connected because if not then it becomes a "jammer" and your ass will belong to Bubba.
Kev - the LT450 is purely a laser device at the front of a vehicle - nothing more combined with a home receiver that activates your door/light/catflap.
ANY of the dash mounted ones are a waste of time - by the time they detect the laser through the windscreen you've already been hit and measured. You have to have something that registers the "hit", sends a signal in reply as a "query" and then shuts down after not getting the "correct" reply. This is what the LT does, the Snooper is just a jammer, there is a "laser parking distance system" that does similar for "ahem - parking" but is barley legal and there's no way you could legally have it fitted to a bike anyway.
Don't know about germany but here they no longer use hand-held radar because of "slippage" so anything "active" needs to cover that only - back it up with a gps like the Inforad and off ya go. There is a way to get the Inforad to sound a siren but it means cutting into the loom to pick up on the LED circuit.
There are plenty of sites out there that review these things and one in particular has access to some police "chums" who are more than happy to help "test" the toys.
Gives Pros and Cons and real advice on why or not to use them.
Can't remember the name but the site background is pale yellow if that helps.
http://www.ukspeedtraps.co.uk/http://www.radardetectorsreviews.co.uk/laser.htmhttp://www.speed-detectors.co.uk/catalog/laser-parking-sensors-jammers-c-57.html