The victims complain that they were not informed of the results of an investigation, carried out into a 24 June raid of the Archdiocese of Mechelen-Brussels, Sint Rombouts Cathedral, and the home of Cardinal Godfried Danneels.
The Belgian courts concluded that the investigations were "irregular" and therefore could not continue. However, the judge requested confidentiality and victims were not informed.
The investigation tried to determine whether members of the hierarchy had covered up a case of a Belgian priest accused of sexual abuse.
The Vatican expressed its indignation following the June raid and the way in which it was carried out.