Airport police units are a security police agency assigned to perform law enforcement functions at airports. They provide a wide range of law enforcement duties and responsibilities including patrol, investigation, traffic flow management, and control and response to airport emergencies.^[1] Airport police provide enhanced safety to airport employees, and to passengers. Officers can be found at security gates, throughout the terminal area, and around the airport’s perimeter.^[2]

In some cases, airport police are branches of larger general purposes agencies. "Airport Safety Officers," are cross-trained in Fire, Emergency Medical Services, law enforcement, and even military units. They support federal security directives and initiatives, airline security programs and passenger screening, enforce airport rules and regulations on the airfield and within secured areas, and assist with traffic and crowd control. Airport police agencies are vital components of the international aviation security system but do not, in themselves, perform all aspects of airport security force.

• In India, security of airports is handled by the Central Industrial Security Force (CISF)
• In Indonesia, security in airports are handled by different agencies. The Indonesian National Police officers basically enforce law and order in the airport facility. Screening officers in the other hand are conducted by "Aviation Security" (abbreviated "AVSEC") personnel which wear blue uniforms and blue side caps. For parking, traffic control and external security of the airport are handled by Security guards which are administered under the Airport's management. As per 2015, the minister of transportation of Indonesia signed an MoU agreement with the Marine Corps to work together in improving the security of the ministry's public facilities including Railway stations and Airports throughout the country by posting several military members from the Marine corps to assist the Airport police in implementing security and order.^[3]
• In Singapore, The Singapore Police Force (SPF) operates The Airport Police Division (APD). The APD functions as the law enforcement agency, responsible for the maintenance of law and order within its jurisdiction of, Singapore Changi Airport and Seletar Airport. SPF is also the Appropriate Authority for security at the airport. Hence, APD, as the executive arm of the Police within the airport, is responsible for the development, implementation and maintenance of the National Civil Aviation Security Programme. It is to protect the security, regularity and efficiency of international civil aviation in the airport and safeguard against acts of unlawful interference aimed at passengers, personnel, aircraft, airport terminals or aircraft navigation installations and equipment.^[4]
• Hong Kong International Airport security is provided by Hong Kong Police Force's Airport Security Unit as well by civilian contractor Aviation Security Company Limited Hong Kong (AVSECO) personnel. HKPF officers are armed while AVSECO personnel are unarmed.
• In Pakistan, Airports Security Force (ASF) Provides law enforcement and Security for Airports.
• In the Philippines, airport police function in the country are jointly operated by the Philippine National Police - Aviation Security Group of DILG and Office for Transportation Security - Civil Aviation Security Bureau of DOTr. both organizations facilitate security functions under the mandate of the Civil Aviation Authority of the Philippines.
  • Ninoy Aquino International Airport was manned by the Manila International Airport Authority - Airport Police Department under DOTr which aim to strengthen security layer within the airport vicinity including terminals, gates and hangars. ^[5][6]
  • Clark International Airport operate a separate airport security function under the jurisdiction of Bases Conversion and Development Authority - Clark Development Corporation and Clark International Airport Corporation - Airport Security Department. ^[7]
• In Vietnam, each airport has its own Aviation Security Center. Each Aviation Security Center is under command of Civil Aviation Authority of Vietnam, which is a part of the Ministry of Transport.^[8]
  • Tan Son Nhat Airport, Ho Chi Minh City: Aviation Security Center of Tan Son Nhat Airport
  • Noi Bai Airport, Ha Noi: Aviation Security Center of Noi Bai Airport
  • Da Nang Airport, Dan Nang: Aviation Security Center of Da Nang Airport
• In Australia, the Australian Federal Police and Border Force officers look after security of the major airports.^[9]

• In Argentina, The Airport Security Police (PSA) (Spanish: Policía de Seguridad Aeroportuaria) provides public safety on airport grounds. It is a law enforcement agency created to protect and guard national public airports. The PSA protects and ensures the internal security within the airport's jurisdiction, through prevention and investigation. Preventative airport security includes planning, implementation, evaluation and or coordination of activities and operations, at the tactical and strategical level. The PSA attempts to avert the conspiracy of complex criminal acts, including drug trafficking, terrorism, smuggling and other related crimes.^[22]

• In the Czech Republic, The Police CR Provides law enforcement and Czech Airport Security Service provides Security for Airports.
• In Denmark, the Police of Denmark provides law enforcement and security for airports.
• In Finland, the Finnish Police Service provides law enforcement and security for airports.
• In France, the Air Transport Gendarmerie Branch of the National Gendarmerie provides law enforcement and security for airports.
• In Germany, the Federal Police provides law enforcement and security for international airports and major railway stations.^[23]
• In Ireland, the Airport Police Service (Irish: Póilíní an t-Aerfoirt) is a small private police force responsible for providing local policing and aviation security duties at the three state airports in Ireland: Dublin Airport, Cork Airport and Shannon Airport. Founded in 1936, they first became "Authorised Officers" in 1950. The national police, An Garda Siochana are the primary security and law enforcement agency and have a fulltime contingent stationed in the airport^[24]
• In Italy, The State Police Provides law enforcement and Security for Airports.
• In the Netherlands the Royal Marechaussee Provides law enforcement and Security for Airports, most notably at Amsterdam Schiphol Airport.
• In Norway the Norwegian Police Service Provides law enforcement and Security for Airports.
• In Poland, The Policja Provides law enforcement and Polish Airport Security Service provides Security for Airports.
• In Russia, The Politsiya Provides law enforcement and Security for Airports.
• In Spain, The National Police and the Civil Guard Provides law enforcement and Security for Airports.
• In Switzerland, The International Security Police: Airport Unit (PSI) (French: Police de la Sécurité Internationale: Unité Aéroport) performs various tasks to provide security to the airport site and safety to airport buildings. This includes, traffic management for vehicles travelling and parking on airport territory, patrol of the airport’s runways, tarmacs, and parked aircraft. Foot patrols are used to ensure the safety of airport buildings in public transit areas, and airline offices to maintain order and public safety. PSI patrols ensure the closure of areas at risk in case of parcel bombs or suspect. The unit also controls migration, through the verification of travel documents and identity documents and can issue temporary emergency passports.^[25]
• In the United Kingdom it is generally the responsibility of local territorial police forces to provide armed patrols to each airport, for example the Metropolitan Police Service's Aviation Security Operational Command Unit, with responsibility for London Heathrow Airport and London City Airport. Northern Ireland has a different arrangement with a dedicated police force for Belfast International Airport.

Airport Police Departments are represented in the United States by a membership organization called ALEAN or the Airport Law Enforcement Agencies Network.

• Airport security force
• Transit police