The general rule in civil cases is that the burden of proof rests upon the party who substantially assert the affirmative before the evidence is gone into. Therefore, the burden of proof lies on the person who will fail assuming no evidence had been adduced on either side…Where the plaintiff as in this case, pleads and relies on negligence by conduct or action of the defendant, the plaintiff must prove by evidence the conduct or action and the circumstances of its occurrence, which give rise to the breach of the duty of care owed the plaintiff. And that it is only after this, that the burden shifts to the defendant to adduce evidence to challenge negligence on his part.
– Shuaibu JCA. Diamond Bank v. Mocok (2019)