Adigun v. Attorney- General of Oyo State (1987) 2 NWLR (Pt. 56) 197 where the Supreme Court stated: “If the principles of natural justice are violated in respect of any decision, it is indeed immaterial, whether the same decision would have been arrived at in the absence of the departure from the essential principles of justice. The decision must be declared as no decision.”
FAIR HEARING IS TRIAL ACCORDING TO ALL LEGAL RULES
The law is indeed well settled that fair hearing within the meaning of Section 36(1) of the Constitution of Federal Republic of Nigeria, 1999 (as amended), means a trial or hearing conducted according to all legal rules formulated to ensure that justice is done to the parties. It requires the observation or observance of the twin pillars of the rules of natural justice, namely audi alterem partem and nemo judex in causa sua. These rules, the obligation to hear the other side of a dispute or the right of a party in dispute to be heard, is so basic and fundamental a principle of our adjudicatory system in the determination of disputes that it cannot be compromised on any ground. See Per PETER-ODILI, JSC in EYE v. FRN (2018) LPELR-43599(SC) (P. 28-30, PARA. A).
— U.M. Abba Aji, JSC. State v. Andrew Yanga (SC.712/2018, 15 Jan 2021)