A Class of Information is a way of collecting together similar types of information. The Office of Director of Public Prosecutions has grouped its Classes of Information into broad categories (or functions) which reflect the Office of Director of Public Prosecutions's outputs. If you are intending to make a request, the following grouping of information should give you an indication of where the information may be found.
Criminal Files
International Co-operation Files
Human Resources/Administration Files
General Written Memoranda to Government Departments