Animals Ordinance 1962, Forest Enactment 1968 and the Wildlife Conservation Enactment 1997 among others. Under the Wildlife Conservation Enactment, any persons hunting inside conservation lands are liable for imprisonment for five years and fined with RM50,000. The state government also plans to implement seasonal huntings as part of its conservation efforts to prevent the continuous lose of its endangered wildlife species while maintaining the state indigenous hunting traditions. Conservation issues Since the post-World War II timber boom driven by the need of raw materials from industrial countries, Sabah forests have been gradually eroded by uncontrolled timber exploitation and the conversion of Sabah forest lands into palm oil plantations. Since 1970, forestry sector have contributed for over 50% of the state revenue, of which a study conducted in 1997 revealed the state had almost depleted all of its virgin forests outside the conservation areas. The state government were determined to maintain the state biodiversity while to make sure the state economy continue to alive. While in the same time facing hard task to control such activities although there is laws to prevent it. The need for development and basic necessities also became an issue while to preserving the nature. Mining activities had directly released pollutants of heavy metals into rivers, reservoirs, ponds and affecting groundwater through the leaching of mine tailings. An environmental report released in 1994 reported the presence of heavy metal at the Damit/Tuaran River that exceeded the water quality safe levels for consumption. The water in Liwagu River also reported the presence of heavy metal which was believed to be originated from the Mamut Mine. Forest fire also have become the latest concern due to drought and fires set by irresponsible farmers or individuals such as what happened in the 2016 forest fires, where thousands of hectares of forest reserves in Binsuluk on the west coast of Sabah were lost. Rampant fish bombing has destroyed many coral reefs and affecting fisheries production in the state. Moreover, the illegal activities of the extraction of river sand and gravel in the rivers of Padas, Papar and Tuaran had become the latest concern along with the wildlife and marine hunting and poaching. Due to severe deforestation along with massive wildlife and marine poaching, the Sumatran rhino have been declared as extinct in early 2015. Some other species that was threatened with extinction is banteng, bearded pig, clouded leopard, dugong, elephant, false