The General Administrative Law Act says that every decision in an administrative law case must be public. The court keeps an official record ('proces-verbaal') of those decisions.
People can ask the registrar for a copy of that official record, including the case number, the names of the people who are involved in the case and the court’s decision. The registrar will send the copy free of charge.
If they want to, those people can use that official record to ask the registrar for a copy of a specific decision. The court can then give them that decision free of charge or publish it at www.rechtspraak.nl.