When refusing an application for a certificate of naturalisation, the Minister for Justice is entitled to do so on the basis that the applicant has not satisfied the “good character” criterion. If the Minister does not wish to disclose the information upon which his decision or the recommendation which led to it was based, he must provide a justification for this, subject to any appropriate claim of privilege he may wish to make. Any claim of privilege must be specific and should not be so vague or general as to leave the applicant and, as the case may be, a reviewing court, unclear as to the nature of the privilege claimed.