Measures allowing the monitoring of people released from indefinite immigration detention are incompatible with the constitution, the High Court has ruled.
The man who brought the recent court challenge was convicted of murder in 2006, and after his release from jail, was subjected to the monitoring conditions, which his lawyers said were unconstitutional and "punitive".
The ABC understands 43 people who were being electronically monitored in the community will all now be transferred to mandatory reporting conditions, akin to those imposed under bail.