An accused pleads guilty to the charge of murder and confirms that he does so on the advice of his legal representative.

Discuss what the presiding officer is required to do should or after the accused has pleaded guilty in terms of section 112(1)(b) of the Criminal Procedure Act 51 of 1977 and why this section is important for an accused with reference to the case of S v Naidoo 1989 (2) SA 114 (AD).