The BAU is part of the FBI National Center for the Analysis of Violent Crime. The show differs from many procedural dramas by focusing on profiling the criminal, called the unsub or "unknown subject", rather than the crime itself.
The BAU is an integral part of the FBI's National Center for the Analysis of Violent Crime. Unlike many other procedural dramas, this series focuses on identifying and understanding the perpetrator, known as the unsub or unknown subject, rather than solely on the crime.