When an unrepresented accused pleads guilty in proceedings under s271(2)(b) of the Criminal Procedure and Evidence Act, the magistrate must satisfy themselves that the admission of guilt is genuine, unqualified and unequivocal by examining each essential element of the offence one by one. Where an accused person denies an essential element or equivocates even in the slightest manner in response to questions confirming essential elements, the magistrate is obliged to immediately stop the process, alter the plea to not guilty, and require the prosecution to proceed with a full trial. The magistrate has no right to force an accused person to plead guilty. Additionally, under s327 of the Act, previous convictions may only be dealt with after conviction and it is the prosecution's duty, not the court's, to tender and prove them. A magistrate's inquiry into previous convictions before conviction and before prosecution tenders them constitutes a gross irregularity that vitiates the proceedings.