sentences:  The most notable case was that relating to the Gretley coal mine disaster, near Newcastle, where four men were killed when their mining machine broke into the flooded workings of an old coalmine, abandoned over 80 years earlier.The inquiry was held by his Honour Jim Staunton, former chief judge of the District Court of New South Wales, who was appointed to be an acting judge of the Court for this inquiry.The inquiry was notable for its early use of technology to display information electronically in the court room.