311When a person is unfit to plead

311 When a person is unfit to plead (1) A person is unfit to plead to a charge if the person’s mental processes are disordered or impaired to the extent that the person cannot— (a) understand the nature of the charge; or (b) enter a plea to the charge and exercise the right to challenge jurors or the jury; or (c) understand that the proceeding is an inquiry about whether the person committed the offence; or (d) follow the course of the proceeding; or (e) understand the substantial effect of any evidence that may be given in support of the prosecution; or (f) give instructions to the person’s lawyer. (2) A person is not unfit to plead only because the person is suffering from memory loss.