In other words, once grounds for bringing application for order of certiorari exists, a person aggrieved by the decision or order of an inferior court or tribunal can apply for an order of certiorari to issue, even though he has a right of appeal also against the order or decision. With the statutory provisions also on the ground, there is no doubt whatsoever that the High Court of Justice of Oyo State before which the appellants filed their application by prerogative writ of certiorari asking that court to quash the entire proceedings of the 1st respondent’s Senior Magistrates’ Court culminating in the undated judgment convicting them of the offences of conspiracy, assault occasioning grievous harm and malicious damage, has jurisdiction to entertain their case.
— M. Mohammed JSC. The State v. Monsurat Lawal (SC. 80/2004, 15 Feb 2013)