The aims of the criminal justice system

The ‘criminal justice system’ is not a structure which has been planned as a system. Nor is it so organized that the several interlocking parts operate harmoniously. In England and Wales, as in many other jurisdictions, the administration of criminal justice has grown in a piecemeal way over the years, with separate phases of development leaving their mark. To refer to a ‘system’ is therefore merely a convenience and an aspiration. It should not be assumed that the various arrangements were planned or actually operate as a system, although it remains necessary to recognize the interdependence of the different parts and to incorporate this into any planning.

It is important to distinguish the aims of the criminal justice system from the aims of sentencing, which merely relate to one element. The system encompasses a whole series of stages and decisions, from the initial investigation of crime, through the various pre-trial processes, the provisions of the criminal law, the trial, the forms of punishment, and then post-sentence decisions concerned with, for example, supervision, release from custody and recall procedures. It would hardly be possible to formulate a single meaningful ‘aim of the criminal justice system’ which applied to every stage. It is true that one might gather together a cluster of aims: for example, the prevention of crime, the fair treatment of suspects and defendants, due respect for the victims of crime, the fair labelling of offences according to their relative gravity and so on.