Review proceedings of decisions of inferior courts must be brought by way of court application as mandated by Rule 256 of the High Court Rules, not by urgent chamber application. An applicant seeking to review criminal proceedings must state valid grounds for review that relate to those provided in s 27 of the High Court Act (absence of jurisdiction, interest, bias, malice, corruption, or gross irregularity) or recognized common law review grounds. Mere allegations of mental incapacity without supporting medical or psychiatric evidence cannot serve as a basis to set aside a criminal conviction where the accused pleaded guilty and no irregularity occurred during the trial. A valid conviction and sentence obtained through due process cannot be overturned without compliance with proper review procedures and the establishment of recognized review grounds.