Mining bosses and managers face jail if a worker dies on their mine site or oil rig, under options being investigated by the WA [Western Australia] Government...That means mining giants...face far greater penalties for any safety failures or environmental pollution...The Department of Mines and Petroleum will investigate the measures as part of a review of the state's mining legislation and penalties. It comes after a series of articles...exposing the dark side of WA's mining boom, which found major safety breaches by companies, environmental pollution and groundwater contamination, and accusations the state's mines and environment watchdogs were not holding companies to account...[F]amilies of workers killed on mine sites welcomed the review...The discussion paper will look at whether company bosses, mine managers and supervisors should be charged with corporate manslaughter and held criminally responsible when a worker dies. It will also examine whether directors should automatically be held liable for environmental disasters such as oil spills. [refers to BHP, Rio Tinto, Hancock Prospecting]