In NNPC v. FAMFA OIL LTD. (2012) 17 N.W.L.R. (Part 1328) S.C. 148, this Court, while faced with a similar objection to the grounds of appeal, went ahead to deal extensively with the criteria for identifying when a ground of appeal is one of law, of fact, or of mixed fact and law. Rhodes-Vivours J.S.C., at Pp. 175 – 176, Paragraphs C – H, as follows: “…. In Nwadike v. Ibekwe (Supra), this Court explained further that: (a) It is an error in law if the adjudicating Tribunal took into account some wrong criteria in reaching its conclusion. (b) Several issues that can be raised on legal interpretation of deeds, documents, terms of arts and inference drawn there from are grounds of law. (c) Where a ground deals merely with a matter of inference, even if it be inference of fact, a ground framed from such is a ground of law. (d) Where a tribunal states the law in point wrongly, it commits an error in law. (e) Where the complaint is that there was no evidence or no admissible evidence upon which a finding or decision was based, same is regarded as a ground of law. (f) If a Judge considers matters which are not before him and relies on them for the exercise of his discretion, he will be exercising same on wrong principles and this will be a question of law…..”
PRINCIPLES THAT GUIDE WHETHER A GROUND OF APPEAL IS INCOMPETENT
The principle to guide the court in deciding whether a ground of appeal is incompetent is as laid down in the case of Aderounmu v. Olowu (supra) at pages 265 – 266 which has been cited and relied upon by both counsel in this appeal. In that case, Ayoola JSC stated the law, inter alia , as follows: “… what is important in a ground of appeal and the test the court should apply is whether or not the impugned grounds show clearly what is complained of as error in law and what is complained of as misdirection or as the case may be, error of fact . The view, with which I am inclined to agree, is expressed in the Court of Appeal. See the case of Nteogwuija and Ors. v. Ikuru and Ors. (1998) 10 NWLR (Pt. 569) 267 at 310, that the mere fact that a ground of appeal is framed as an error and misdirection does not make it incompetent. In my view, only general propositions can be made in a matter in which the question is not as to form. Ultimately, it is for the court before which the question is raised to decide whether viewed objectively, the ground satisfies the requirements of preciseness and clarity … what makes a ground incompetent is not whether it is framed as an error and a misdirection but whether by so stating it, the other side is left in doubt and without adequate information as to what the complaint of the appellants actually is.”
— Onnoghen JSC. Aigbobahi & Ors. v. Aifuwa, Osabuohien & Ors. (SC. 194/2001, 3 Feb 2006)