Procedural Justice concerns the way and method of drawing Justice System. Questions about it are remarkably persistent. We can find here different Theories: What is the aim of civil dispute resolution; Accuracy or solving the conflicts of interests anyway. Some others, in the utilitarian tradition have argued that procedural fairness can be reduced to the calculation of costs and benefits. The third theory called Participation that assumes that the very idea of a correct outcome must be understood as a function of process that guarantees fair and equal participation. The participation is not well-defined, because it rests on uncertain and varying foundations: for this reason, we will investigate four interpretations for it such as: Dignity, Satisfaction, Rational discourse and finally, Gaming.