Crime in Western Australia is tackled by the Western Australia Police and the Western Australian legal system. History Massacres of indigenous Australians A number of massacres of Aboriginal Australians, some as part of the frontier wars, occurred from the 1830s until well into the 20th century. Few of the perpetrators were ever brought to justice. Bushrangers The colony had its share of bushrangers in the 19th century, the most well-known of whom was "Moondyne Joe". Crime statistics 2003-2004 Western Australia recorded lower rates than most other states in Australia for violent offences, but had the highest rate of burglary. In 2003 the prison population increased by 3.4% with a similar increase in 2004. 2007–2008 84 homicides, 3,903 sexual assaults, 22,708 assaults and 1,849 robberies were recorded, with a total of 33,890 offences against the person. 39,482 incidents of burglary and 82,963 incidents of theft were recorded, with a total of 177,846 offences against property. 2008–2009 The chance of being a victim of physical assault was 3.8%. In comparison, the Northern Territory rated 5.7% and New South Wales, South Australia and the Australian Capital Territory each rated 2.8%. The rate of assault was 2,199 offenders per 100,000 people, compared with the Northern Territory's 4,832 and the Australian Capital Territory's 1,096. The chance of being a victim of a break-in in Western Australia was 5.1%. This compared to the Northern Territory's 7.7% and Tasmania's rate of 2.6%. 68 homicides, 3,753 sexual assaults, 22,869 assaults and 1,862 robberies were recorded, with a total of 34,492 offences against the person. 36,364 incidents of burglary and 86,487 incidents of theft were recorded, in a total of 169,263 offences against property. 2009–2010 Australian Bureau of Statistics figures for 2009/10 showed that police action was taken against 2072.1 people per 100,000 head of population in WA. The chance of being a victim of break-in was 5.2%. 76 homicides, 3,246 sexual assaults, 22,394 assaults and 1,70293 robberies were recorded in Western Australia, in a total of 32,922 offences against the person. 30,043 incidents of burglary, 73,215 incidents of theft were recorded in a total of 143,844 offences against property. 2010–2011 The chance of being a victim of physical assault was 3.6%. This compared to the Northern Territory rate of 5.8% and the lowest, Victoria's, rate of 2.0%. The chance of being a victim of break-in was 3.7%, a significant drop from the previous two years. The highest-rating Northern