Mark provided a very comprehensive answer however I can also say that Motorway patrol cars are almost always unmarked and are Saab or Volvo with some BMW 3 series in miserable colours such as drab blue or dark grey. Practically all cameras in Switzerland are laser which negates the use of a RADAR detector and the worst is they often set up traps where they are hidden in the bushes and the first you know about it is when they pull you over. Driving in tunnels is also a problem because they tend to have cameras in the tunnels some of which have temporary mountings so sometimes they are there and sometimes not and they have in some tunnels an average speed measure so they time you between the start and end of the tunnel and calculate the average speed. This stops you from slowing for the camera... That said the police here are very modern and very polite. They have no problem taking immediate payment via credit card and always wish you a good day. What is really bad is that common with Germany they are quite prepared to put cameras in roadworks where they could cause an accident and if you are caught by one of these then the fine is doubled. So overall I would not bother in Europe. Also be aware that merely having a detector in Luxembourg carries a penalty of up to 8 years in prison... Yes I did not believe it first time. Richard