Corruption involves the misuse of public power for private gain, including by elected officials and civil servants. It occurs on various scales from petty corruption at lower levels to grand corruption at the highest political levels. Common forms of corruption include bribery, embezzlement, extortion, and abuse of discretion. In Thailand, notable corruption cases include land deals benefiting Thaksin Shinawatra's family in the 2000s and charges against Prime Minister Yingluck Shinawatra in 2013 related to an unpaid rice scheme. Current Prime Minister Prayut Chan-o-cha has made fighting corruption a focus since taking power in 2014.