S P E C I A L R U L E S O F E V I D E N C E
Section 120: Estoppel against denying original validity of instrument.
No maker of a promissory note, and no drawer of a bill of exchange or cheque, and no acceptor of a bill of exchange for the honour of the drawer shall, in a suit thereon by a holder in due course, be permitted to deny the validity of the instrument as originally made or drawn.