Within the building, there are four flanks painted in 1941 by José Clemente Orozco, two of which are named "The Social Labor Movement" and "Commonwealth". There is also a mural done by American artist George Biddle entitled "War and Peace" at the entrance to the law library. The building also contains a mural by Rafael Cauduro, which "graphically illustrates the Gran Guignol of Mexican torture", and includes a depiction of the 1968 Tlatelolco massacre as well as "a cut-away of a prison, perhaps the infamous Lecumberri Black Palace where student leaders who escaped death were jailed."