68. Disqualification for being member of authority.

(a) if he is of un-sou id mind; or
(b) if he is deaf, mute or suffering from any contagious disease; or
(c) if he is an un-discharged insolvent; or
(d) if he has been convicted by a Court of Law of an offence involving moral turpitude and sentence in respect thereof to imprisonment for not less than six months;