A spokeswoman for the Crown Law Office today said it would make no comment before the case went ahead.
However, Father Murnane told NZPA the three would argue that the GCSB was in breach of international law. He did not want to go into the details ahead of the group's lawyers, "but I think we have a good case".
Fr Murnane said they were not required to be in court, but he and Mr Leason would still attend. Mr Land would not be attending as he was busy on his farm, he said.
The Crown is seeking $1.2m in damages, about $1.14m of which is the cost of the repairs for the deflated "teflon-impregnated glass fibre enclosure" or "radome". It is also seeking about $400 for providing food and drink for the workers who carried out the repairs.
If the Crown wins its case it will ask to have the damages split equally between the three men, who have made no secret that they are not wealthy people.
Fr Murnane said the fact the three had no money raised a big question over the whole procedure, but the Crown was pursuing them regardless.
- NZPA