Adultery and gay sex in Brunei will be subject to death by stoning from next week, authorities said, under a strict Sharia law that has been on hold for four years amid heavy criticism.Rights groups reacted in horror Wednesday to the latest hard-line move from the resource-rich nation on Borneo, which practises a stricter brand of Islam than its neighbours Malaysia and Indonesia.The tiny sultanate will implement the harsh new penal code – which also prescribes amputation of a hand and foot fo