Australia is a constitutional democracy with a freely elected federal parliamentary government. In free and fair federal parliamentary elections held in September 2013, the Liberal Party and National Party coalition won a majority in the 150-seat House of Representatives and formed a government with Tony Abbott as prime minister. In September a leadership challenge within the Liberal Party resulted in a change of the prime minister from Tony Abbott to Malcolm Turnbull. Civilian authorities maintained effective control over the security forces.The main human rights problems were domestic violence against women and children, particularly in indigenous communities; indigenous disadvantage; and policies affecting asylum seekers, including detention and detention center conditions for some attempting to reach the country by sea.The government took steps to prosecute officials accused of abuses, and ombudsmen, human rights bodies, and internal government mechanisms responded effectively to complaints.