278 In Re Minister for Mines; Ex parte Roberts (1997) 18 WAR 408, the salient facts were these. The applicant applied for forfeiture of two mining leases pursuant to s 98(1) of the Mining Act on the ground that the holders of the leases had failed to comply with annual expenditure requirements. The applicant's applications were heard by a Mining Warden who made a recommendation to the Minister that the leases be forfeited. Upon the making of such a recommendation, s 99 of the Mining Act conferred on the Minister a discretion to declare the leases forfeited. After the Warden made his recommendation, the holders of the leases made further written submissions to the Minister in an attempt to persuade him not to forfeit. Also, the Director, Geological Survey, from within the Minister's department, submitted to the Minister information which suggested that it may not have been economically viable for the holders to have mined the land in question during the relevant period. The applicant was not informed, before the Minister made his decision on forfeiture, of the existence or content of the further written submissions from the holders, or of the information from or opinions expressed by the Director, Geological Survey. The Minister decided not to forfeit the leases. If forfeiture had been ordered, the applicant would have had, by virtue of s 100(2) of the Mining Act, for a period of 14 days after the date of publication of the notice of forfeiture, a right in priority to any other person to mark out or apply for, or both, a mining tenement upon the whole or any part of the land the subject of the forfeited leases. The Full Court of the Supreme Court of Western Australia made absolute, orders nisi for writs of certiorari and mandamus. Steytler J, as his Honour then was (with whom Malcolm CJ and Kennedy J agreed), said, at 418: