Thank you Michael Wise for alerting me to  NSWSC 1759 Live Group v Rabbi Ulman in which Sackar J at the NSW Supreme Court displays both sensitivity and adroitness in addressing the relationship between a Beth Din (a Jewish court) and the courts in ordinary.
The case I imagine will be of interest for those studying church /religion and state relations. It would seem to conclude that a Beth Din (or equivalents in other faiths) threat to impose religious sanctions on an unwilling party, will be considered contempt of the courts in ordinary and thus a no-go zone. However that as such the State courts should not hesitate to support arbitration through religious courts by compelling those who agreed to it in commercial relations, to submit to it. (Sackar J does highlight features of the particular case as not meeting natural justice requirements).