In federal blackmail cases in particular, it is important to quickly identify the agency (or agencies) involved in your investigation. The U.S. Department of Justice (DOJ), the Federal Bureau of Investigation (FBI), and various other agencies all perform investigative and law enforcement functions for the federal government, and each has its own unique policies, procedures, and tendencies. Knowing the agency (or agencies) involved will begin to narrow the focus of your defense and help identify the specific defenses and negotiation strategies that are available.