The court found that the Minister's decision to declare the applicant a prohibited immigrant and order his deportation was tainted by procedural impropriety and irrationality. The applicant was not served with the deportation order, was not given reasons or a hearing, and the respondent failed to provide evidence justifying the suspicion of drug trafficking or the existence of multiple passports. The court held that the process violated the applicant's legitimate expectation and the principles of natural justice as enshrined in Article 47 of the Constitution and the Kenya Citizenship and Immigration Act. However, the court declined to grant the order of certiorari because the applicant had already been deported, rendering the remedy academic and of no practical effect. The court exercised its discretion to refuse the judicial review orders but awarded costs to the applicant.