This research, sponsored by the coordination center for the Psychiatric, Diagnosis, and Cure Services (SPDC), would verify if, and in which measure, the mechanical restraint is still today a mean necessary for the management of the states of agitation in the psychiatric emergencies. The perspective in which the search is developed has been that to consider the restraint a point of synthesis of the matters of ethic, of quality and safety, and not only and exclusively a moral matter. The results of the search have showed a conspicuous and diffused use the mechanical restraint as routine mean in the management of the serious agitation and the incisive influence of endogenous (SPDC) factors of risk and exogenous (catchment's area and mental health department) in to determine a recourse to it. In conclusion, he sustains that a effectiveness and winner action to limit and to eliminate, in perspective, the mechanical restraint in the current routine of SPDC cannot put aside at the most from an appointment level both type professional (leadership, staff training, guide lines, yearly audit) both type normative (the restraint as discriminating for the accreditation and for the evaluation of the executives, and business procedures for prevention of risk in the safety's optics for patients and operators).