The thought of their criminal lives and attitudes gave Van a metallic tang in his mouth. Van had never spent much brainpower on ethics, law, or philosophy, but Van could taste evil. Cops knew this about him. Cops regarded Van as a stand-up guy. Cops bought him beer. They respected the difficult things that he told them about network security and computer forensics, and they took the technical steps that he recommended. Van’s software and his advice worked out pretty well for cops. Arrests and convictions followed, and cops liked that a lot.