The judge fixed the date for judgment after lawyers representing parties adopted and argued their briefs of arguments for and against the suit.
An Abuja-based legal practitioner, Mr Victor Opatola, had last year dragged President Bola Tinubu to court, over the appointment of Olukoyede.
Opatola, in the suit filed at the Federal High Court, Abuja, is specifically challenging the validity of his appointment on the grounds that he did not meet the years of service required by law for the office of chairman of the anti-graft agency.
The President of Nigeria, National Assembly, Attorney General of the Federation (AGF) and Olukoyede are first to fourth respondents respectively, in the suit marked: HC/ABJ/CS/1403/2023.
Adopting his brief on Thursday, Opatola urged the court to discountenance and dismiss the objections and prayers of the defendants and grant the reliefs sought in the suit.