It must be accepted that the absence of the necessary ministerial approval or consent is a serious defect which affects the title sought to be conferred by the relevant instrument. It seems to me that if there is no evidence or ground upon which a presumption can be raised that such approval or consent had been obtained, the party whose reliance on the validity of a relevant transaction depends on that approval or consent has the burden to prove that it was obtained. It is not helpful to rely on the fact that the instrument evidencing the transaction was registered because registration does not cure the defect arising from the absence of the ministerial approval or consent, or indeed any defect in any instrument.
— Uwaifo, JSC. Rockonoh v. NTP (2001) – SC.71/1995