This Guideline sets out the criteria governing this decision and serves three principle purposes. The first is to provide Prosecutors with the necessary tools to prosecute matters effectively and fairly. The second is to promote consistency in the making of the various decisions which arise in relation to the institution and conduct of prosecutions. The third is to inform the public of the principles upon which the Office of the Public Prosecutor performs its Constitutional functions, and actions taken in its name. These guidelines are based on internationally accepted standards. They are freely and publicly available and should be read and applied in conjunction with other instruments published by the Office of the Public Prosecutor that affect the conduct of prosecutions.