In my view the learned trial Judge was in grave error when he presumed the validity of Exhibit J without evidence of prior Ministerial approval to it which, for that reason is a nullity. The 1st respondent had no duty to prove that Exhibit J was irregular and void when the appellant did not prove its regularity and validity.
— Wali, JSC. Rockonoh v. NTP (2001) – SC.71/1995