The last Act of 10/05/2018 on the amendment to the Law on the System of Common Courts and the Supreme Court Act retained the new contested extraordinary legal remedy, i.e. the Extraordinary Appeal to the Supreme Court. This contribution discusses the grounds for extraordinary appeal in criminal cases, formulating the need for urgent legislative changes and elimination of institution not only undermining the principle of legal certainty due to possibility of reviews of any final court judgment, but in its normative structure referring to the civil procedure, which is totally alien to the criminal proceedings, especially with regards to model of extraordinary remedies.