Crime in Australia is managed by various law enforcement bodies (federal and state-based police forces and local councils), the federal and state-based criminal justice systems and state-based correctional services. The Department of Home Affairs oversees federal law enforcement, national security (including cyber security, transport security, criminal justice, emergency management, multicultural affairs, immigration and border-related functions). It comprises the Australian Federal Police, Australian Border Force, the Australian Security Intelligence Organisation, the Australian Criminal Intelligence Commission, the Australian Transaction Reports and Analysis Centre and the Australian Institute of Criminology . Each state and territory runs its own police service. The national justice system is overseen by the Attorney-General's Department, with each state and territory having its own equivalent. Prison services are run independently by correctional services department in each state and territory. Crime statistics are collected on a state basis and then collated and further analysed by the Australian Bureau of Statistics. Between 2008–09 and 2017–18 the national victimisation rate decreased for personal crime in all categories except sexual assault, and also all household crimes selected in the national statistics. Approximately 5.0% (966,600) of Australians aged 15 years and over experienced personal crime. Law enforcement Law enforcement in Australia is served by law enforcement officers under the control of federal government, states and territories and local agencies. A number of state, territory and federal agencies also administer a wide variety of legislation related to white-collar crime. Police are responsible for the administration of criminal law. Sheriffs and bailiffs in each state and territory are responsible for the enforcement of the judgments of the courts exercising civil law (common law) jurisdictions. The various state police forces are responsible for enforcing state law within their own states, while the Australian Federal Police (AFP) are responsible for the enforcement of and investigation of crimes against Commonwealth law which applies across the whole country. Justice Prison services Immigration detention centres In addition to the standard prisons run by the states (and not included in prisoner statistics), the Department of Home Affairs also operates a separate system of Australian immigration detention facilities to detain non-citizens who have breached the terms of or lack a visa. Some of these immigration detention centres are used to indefinitely detain asylum seekers and refugees, often without trial and in many cases for several years. Crime and crime prevention since colonisation Convicts During the late-eighteenth and nineteenth centuries, large numbers of convicts