Chief constables and commissioners are responsible for the direction and control of policing in their force areas. Although a national body and recognized by the government for consultation, ACPO had no powers of its own, nor any mandate to instruct chief officers. However, the organisation allowed chief officers to form a national policy rather than replicate the work in each of their forces. For example, after the 1980–81 riots in 27 British cities including in St. Pauls and Brixton ACPO began to prepare the Public Order Manual of Tactical Operations and Related Matters. Police forces began training in its tactics late in 1983.