BCBAs in the FBI often support investigations involving complex behavioral patterns, such as threat assessment, criminal profiling, crisis negotiation, and analyzing suspect or witness behavior. They work closely with agents, analysts, and other specialists to interpret behavioral data and inform investigative strategies. Daily responsibilities may include reviewing case files, conducting behavioral assessments, and advising teams during interviews or interrogations. Working in this role offers unique challenges—such as operating in high-stakes, confidential environments—but also provides rewarding opportunities to apply behavioral science to public safety.