How To Find Hidden Cameras
1 Introduction
During the last few years the number of surveillance cameras has grown out of bounds. Cameras have been installed in many public and semi-public places such as universities [1], streets, supermarkets, gas stations, parking garages, cinemas, bars, shops, busses, train stations and even discos. About 25 million CCTV cameras are estimated to be in operation worldwide at the time of writing [2]. Some countries, notably Great Britain, are trying to fully cover every corner of public life with cameras. The Privacy International CCTV page [3] states that between 225 and 450 Million Dollars are spent on surveillance technology in Britain per year, involving an estimated 300.000 cameras. These efforts result in a person driving through the city of London being filmed at least once every five minutes [4]. In the near future cameras may even be installed in all taxis, keeping an eye on the passengers [5]. In Houston, Texas, about 400 cabs have been equipped with such cameras [6]