It is settled law that issues for determination must be distilled from grounds of appeal which ground(s) must attack the ratio decidendi of the judgment not anything said by the way, or obiter dicta or be formulated in vacuo , as issue 5 in the instant case. – Onnoghen JSC. Chami v. UBA (2010)
ISSUE NOT RAISED AT THE TRIAL CANNOT BE RAISED ON APPEAL WITHOUT LEAVE
Learned counsel for the 1st respondent in a preliminary objection, raised the issue of filing the process on a public holiday. With respect, I entirely agree with learned Senior Advocate that that issue was not raised at the tribunal. It cannot therefore be raised on appeal without leave of this court. Unfortunately for the 1st respondent, no such leave was sought. And what is more, the tribunal did not advance the reason that the motion could not be taken because it was filed on a public holiday.
— Niki Tobi, JCA. Nnamdi Eriobuna & Ors. V. Ikechukwu Obiorah (CA/E/77/99, 24 May 1999)