OrisirisI awon oludasile to se asaju ise idanwo lori atagba ohun lori okun-irin ati atun-se lori iro okookan miiran.. 
Ní ọdún 1965, ó kẹkọ jáde ní ilé-ìwé náà, ó sì ní "Grade Three ní idanwo abajade WaEC Re.leyin iwe sekondiri, Abubakar tesiwaju iwe ni Nigeria Police College ní Kaduna, ṣùgbọ́n ó kúrò lẹ́yìn igba díẹ̀ nítorí kò fi ẹ̀rí Èsì idanwo Tim rẹ̀ hàn.. 