When the administrative court has received a letter of appeal it obtains a statement on the matter from the authority that made the challenged decision. It also acquires the documents on which the decision was based. The administrative court may ask the parties to supply additional information necessary to decide the matter. The administrative court may also acquire necessary additional accounts clarification on its own initiative.

After that, the administrative court requests the appellant to comment on the statements and reports it has obtained.

The majority of appeals are resolved by the administrative court on the basis of the written material obtained without hearing the parties orally. Oral hearings are, however, also held in the administrative court.