Modern physical identity documents, whether in the form of ID cards, driver’s licenses, or the data page in passports, are made of polycarbonate. The addition of security fibers, like “sprinkles on a birthday cake,” has crossed over from paper to polycarbonate, with the addition of fluorescence, are used in secure documents like German passports and ID cards. Engraved information, clear windows and multiple laser images, optically variable printed images and blind embossing are also included in many IDs to enhance their security.