The law is elementary that a trial Judge has the right to expunge from the record a document which he wrongly or wrongfully admitted. He can do so suo motu at the point of writing judgment. He needs no prompting from any of the parties, although a party is free to call his attention to the document at the stage of address. Where a trial Judge is wrong in expunging a document, the appellate process will correct it and so an argument that the Judge ought to have expunged the document suo motu at the stage of writing judgment, will not avail the party wronged. After all, it is better for a Judge to expunge suo motu a document which is clearly inadmissible under the Evidence Act than allow it to be on the record to give headache to the appellate court. As the appellate court has the competence to expunge it from the record, why not the trial Judge?
– Niki Tobi, JSC. Brossette v. Ilemobola (2007)