Police and Australian Capital Territory Police Force. It is responsible for the investigation of federal offences (crimes against the Commonwealth), and has federal jurisdiction throughout Australia. It provides protective services to federal government properties, government personnel, dignitaries and foreign diplomatic officials, and major airports. It also provides regular law enforcement within external Australian territories, the Australian Capital Territory and the Jervis Bay Territory. The boundaries between the two levels of law enforcement are somewhat flexible, and both state and federal police cooperate on or transfer cases between each other depending on the specific circumstances. The AFP also conducts operations overseas. These include providing liaison officers to various overseas posts to assist in relations with various police forces overseas, providing community policing to assist in the development of foreign law enforcement agencies, and contributing to peacekeeping operations such as the RAMSI Mission in the Solomon Islands and the UN Peacekeeping Force in Cyprus. Australian Border Force The Australian Border Force is responsible for customs and immigration enforcement and border protection at Australia's ports as well as in Australian waters, and conducts investigations where the AFP does not have primary jurisdiction. Unlike AFP Officers, Border Force Officers do not have fully vested federal police powers, and can only exercise arrest and detain powers at Airport and seaport jurisdictions. They may, however, detain persons for state or federal crimes or warrants until that person can be presented to a federal or state law enforcement officer with the appropriate powers. Australian Border Force officers have the authority to carry firearms when a supervisor approves. In practice, only maritime, specialist counter-terrorism officers and Investigators carry firearms. Australian Fisheries Management Authority The Australian Fisheries Management Authority (AFMA) provides fisheries enforcement in Australia's Exclusive Economic Zone, officers are authorised under the Fisheries Management Act 1991 to board and search vessels, and search vehicles and persons suspected of committing fisheries offences and may also search shore-based installation under a search warrant or in other specific circumstances. AFMA officers may with or without a warrant, arrest a person suspected of committing a fisheries offence or an offence against environmental law, and authorised to carry personal defense equipment. Like the Australian Federal Police and Australian Border Force, AFMA is overseen by the Australian Commission for Law Enforcement Integrity. Australian Tax Office The Australian Tax Office (ATO) is a revenue service responsible for tax collection throughout Australia. The ATO is overseen