The Aviation Police Service is part of the Infrastructure Service (DINFRA) within the National Unit of the Dutch police. 
Aviation Police Service is stationed at Schiphol-East. At the moment there are flown with 6 x EC135 and 3 x AW139 helicopters. In addition to providing air support to the regional police units, the aviation police also has an Aviation Supervision department. The latter is mainly concerned with compliance with Aviation legislation by users of Dutch airports and users of Dutch airspace.
Several planes have been in use over the years.
Below is a list of the aircraft types that have been in use over time:
Cessna 337 Super Skymaster
Pilatus Britten-Norman BN.2T Turbine Islander
Cessna 182 Skylane II
Sud Aviation Gazelle
Bell 206 JetRanger
McDonnell Douglas MD902 Explorer
In 2009, the seven Bölkow BO-105s were replaced by six Eurocopter EC-135s with registrations PH-PXA (call sign: 'Police01'), PH-PXB ('Police02'), PH-PXC ('Police03'), PH -PXD ('Police04'), PH-PXE ('Police05') and PH-PXF ('Police06')
Agusta Westland AW139
In 2009, two larger Agusta Westland AW139s with PH-PXY ("Police25") and PH-PXZ ("Police26") registrations were purchased.
A third Augusta Westland AW139 came into service in March 2019. This is registered as PH-PXX ("Police 24").