Evidence Act
47. Proof that judgment was incompetent or obtained by fraud or collusion.
47. Proof that judgment was incompetent or obtained by fraud or collusion.
Any party to a suit or other proceeding may show that any judgment, order or decree which is admissible under the provisions of this Act and which has been proved by the adverse party, was delivered by a court not competent to deliver it, or was obtained by fraud or collusion.Source: Kenya Law