Author: Federal Bureau of Investigation (FBI). This image was originally posted to Flickr by Federal Bureau of Investigation (FBI) and was confirmed to be licensed under the terms of the Public Domain Mark. This work has been released into the public domain by the author on Flickr, where the author has declared it as a "Public Domain Work" and tagged it with the Creative Commons Public Domain Mark. The Public Domain Mark (PDM) is not a copyright license, but a symbol used to indicate that a work is in the public domain.