"In the South African case of S V. ANDREWS 1982 (2) S.A. 269 (N.C.), it was held that considerations of fairness require that where a statute raises a presumption which needs to be rebutted by the accused,
the accused, if undefended, should be informed of the presumption, and a failure to inform him thereof can lead to the quashing of
his conviction if he was prejudiced by such failure."
Zietsman J.A. after citing South African cases namely S. V. MOETI 1989 (4) S.A. 1053(0), S. V. RUDMAN 1989 (3) S.A. 368 (E) AT 378 G - 379A and L V. HLONGWANE 1982 (4) S.A. 321 (N) AT 323 C then continued:
"Section 10 of the Constitution of Botswana provides, inter alia, that a person charged with a criminal offence must be afforded a fair hearing, and must be informed, in a language that he understands,
and in detail, of the nature of the offence. In the present case the subsection in the Penal Code under which the appellant was charged
provides a special defence which can be raised by the accused. It is my opinion that in view of the appellant's obvious ineptness
in conducting his defence, and his probable ignorance of this special defence, the existence and the meaning thereof should have
been explained to him by the magistrate. The fact that this was not done leads me to the conclusion that it cannot be said that the
appellant was given a fair trial."
Lord Weir ]A agreed with Zietsman J.A. that this appeal should be allowed. He
set out the principles which should be applied:-
"In any trial where the accused person defends himself either because he chooses to do so or because he cannot afford a legal
representative an onerous responsibility lies on the judge to ensure that he receives a fair trial. There will be cases where the
accused may be able to conduct his case with skill and there will be cases in which the issues at the trial will be obvious to the
meanest intelligence. In such cases it will probably be unnecessary for the judge to intervene. On the other hand there will be cases
where the issues are not straightforward. In such a situation the judge will have to be vigilant to ensure that the defence case
does not go by default because of lack of skill or comprehension on the part of the accused. No hard and fast rules can be laid down
as to when or to what extent a court should intervene on behalf of accused persons. Each case depends upon its own circumstances."
In the present case, the interchange between the magistrate and the appellant immediately after the plea of guilty clearly indicated
that the magistrate had the special defence in sub-section (5) in mind. Unfortunately he never draw the attention of the appellant
to this special defence. The appellant may have not appreciated the reason why the magistrate was questioning him about the age of
the complainant. He may have thought it was relevant to the length of sentence. The