Huntsville has long been associated with criminal justice, being the co-headquarters of the Texas Department of Criminal Justice and the home of several prisons, including the Walls Unit which houses the state's execution chamber, located about two blocks north of the campus.[citation needed] In 1970, the College became one of the first programs in the U.S. to offer the Ph.D. in criminal justice, and it was the first institution in the State of Texas to offer the Masters of Science in Forensic Science. SHSU's PhD in Clinical Science with a Forensic emphasis is one of seven such accredited programs in the U.S. The College faculty were recently recognized as the 4th most productive nationally in their field in terms of research, and their areas of expertise range from serial murder, hate crime, and terrorism to policing, law, corrections, and security.[citation needed] The College of Criminal Justice includes the headquarters of the Texas Forensic Science Commission.[18] It also houses the Bill Blackwood Law Enforcement Management Institute of Texas, which specializes in training for local, state, and federal law enforcement officers in the area of management and supervision. The College also houses a working courtroom where students can observe and analyze real trials.[citation needed]