The decision of judges are not free from errors or mistakes, and often even shows partiality (not neutral) towards certain parties. Extraordinary legal action: cassation for legal purposes can be filed against all decisions that have obtained permanent legal force from other courts, apart from the Supreme Court. Great. The purpose of this research is to determine the factors that cause the Attorney General to rarely use the extraordinary legal remedy of cassation for legal purposes. To revitalize the extraordinary legal effort of cassation for legal purposes so that it can run effectively in the criminal justice system in Indonesia. The findings from this research are that revitalization can be carried out by providing adequate explanations, especially the phrases "legal interests" and "must not harm interested parties" or even eliminating the provisions of Article 359 paragraph (2) of the Criminal Procedure Code, so that it does not give rise to different interpretations and judges can give fair decisions, without being shackled by the phrase "must not harm interested parties".