A concerted action: (1) made in furtherance of an express common purpose; (2) through the use or threat of violence, disorder, or terror to the public; and (3) resulting in a disturbance of the peace. Under common law, the crime of riot requires the assemblage of three or more actors. The concerted acts may be unlawful in themselves, or they may be lawful acts that are done in a violent or turbulent manner. Among the different forms that riots may take include escalated labor disputes or political demonstrations. While most riots occur in public places, they may also take place within prisons