DR MUHAMMAD IBRAHIM ONUJABE & ORS V FATIMA IDRIS (2011) LPELR – 4059 (CA) as follows: “The Oaths act is a general statute that deals with oaths. The provision under Evidence Act on affidavit places a condition precedent which ought to be fulfilled to render the affidavit competent. One fundamental condition is the swearing on oath before the commissioner for oath. It is on this vein that the provision under the oaths Act becomes relevant. That is why a defect as regards the swearing on oath is not a mere irregularity as to form but defect as to substance.”
OFFICER WHO ADMINISTERED AN OATH MUST STATE HIS NAME
Section 83 of the Evidence Act prescribed that an affidavit shall not be admitted which is proved to have been sworn before a person on whose behalf the same is offered or before his legal practitioner or a clerk of the legal practitioner. The import of this provision is that affidavits cannot be sworn before certain persons. Therefore the person duly authorised as commissioner of oath that signed the deponents’ affidavit must state his name. The information on name is verifiable.
— R.O. Nwodo, JCA. Onujabe & Ors. v. Fatimah Idris (CA/A/71/M/2009, 28 June 2011)