Images as evidence

Technology involving image capture has significantly changed the way people engage, witness and experience the modern world. The inclusion of cameras in mobile phones and the proliferation of CCTV surveillance cameras installed in public and private spaces are key developments characterising the digital imaging revolution. The growing prominence of images as a form of communication can be seen in the exponential increase in the number of images taken each year. Determining how many photographs are taken worldwide annually has challenged researchers, and methods of calculating this figure have included estimates based on the number of Kodak employees during the days of film technology.