LEGAL PRINCIPLE: PROFESSIONAL ETHICS – Bias – Standard of Proof Required
PRINCIPLE STATEMENT
To succeed in establishing bias, the party complaining must show: (i) that the personal relation is a party to the action; (ii) that the personal relation must have interest in the subject matter to be litigated upon; (iii) that the interest is not too remote or too indirect but capable of affecting the judicial mind of a judge; (iv) that there is a departure from the standard of even-handedness of justice or circumstances from which a reasonable man would think it likely or probable that justice has not been done in the case or the judge would or did favour one side unfairly at the expense of the other.
RATIO DECIDENDI (SOURCE)
Per Onu, JSC, in Secretary, Iwo Central Local Government v. Adio (2000) NLC-1431994(SC) at pp. 26–27; Paras D–A.
"To succeed in establishing bias, the party complaining must show: (i) that the personal relation is a party to the action; (ii) that the personal relation must have interest in the subject matter to be litigated upon; (iii) that the interest is not too remote or too indirect but capable of affecting the judicial mind of a judge; (iv) that there is a departure from the standard of even-handedness of justice or circumstances from which a reasonable man would think it likely or probable that justice has not been done in the case or the judge would or did favour one side unfairly at the expense of the other."
EXPLANATION / SCOPE
To establish bias, the complainant must prove four elements: (1) the personal relation is a party to the action; (2) that relation has interest in the subject matter; (3) the interest is not too remote/indirect but capable of affecting judicial mind; (4) departure from even-handed justice or circumstances making bias likely or probable. This structured test prevents frivolous allegations. The interest must be direct, substantial, and capable of influencing the judge. Mere relationship without demonstrated interest in the specific subject matter is insufficient. The standard protects judicial integrity while requiring concrete proof.