A counter claim to quote from Bairamien, JSC in Oyegbola v. Esso WA (1966) 1 All NLR 170 is a weapon of offence which enables a defendant to enforce a claim against the plaintiff as effectively as in an independent action. The counter-claim must be directly related to the principal claim but not outside of and independent of the subject matter of the claim. – Niki Tobi JSC. Okonkwo v. Cooperative Bank (2003)
STATEMENT OF CLAIM IS NOT EVIDENCE; PARTY MUST LEAD EVIDENCE
The Statement of Claim of the plaintiff and co-plaintiffs was not evidence before the court of trial. Failure to lead evidence in line with their pleadings means simply this:- that the claim must fail.
— Katsina-Alu JSC. Chime v Chime (2001) – SC 179/1991