What about separation of church and state?
As a Norwegian exjw on Reddit explained, this is not really a court. Is a mediation 'court' below the real courts to unburden those.
From wikipedia:
Conciliation boards
A conciliation board is allocated to each municipality. Each conciliation board consists of three lay members and an equal number of deputies elected or appointed by the municipal council for terms of four years. Conciliation boards mediate between disputing parties and are generally authorised to pronounce a verdict. Conciliation boards resolve the majority of civil disputes, but they do not hear criminal cases and participation in their hearings is voluntary.
So Watchtower will probably just have a judge look at this and get it thrown out..