70 million shoplifting incidents resulting in billions of losses each year face a detection rate of less than one percent. This is the sad reality for the German retail sector. Richard Thiess, now the head of a homicide unit, has accumulated unique expertise in the fight against shoplifting over more than two decades. Initially working as a department store detective and later as the deputy head of a unit combating organized shoplifting, he has dealt with countless cases and legal proceedings. He now shares his knowledge in an accessible way with anyone involved in handling shoplifting cases in retail businesses. Here, both sales staff and department store detectives can find answers to the following questions: How can I effectively prevent shoplifting? How can I recognize shoplifters before they commit the act? How do I legally carry out an arrest?.