Wikipedia
Piketen (or Piketenheten) is a special operations asset of the Swedish Police Authority, similar to the SWAT in the United States. Piketen is called upon when situations occur that are too dangerous for ordinary police to handle such as hostage situations, serving high-risk arrest warrants and confronting armed criminals.
Piketen are stationed in the three largest cities of Sweden: Stockholm, Gothenburg and Malmö but can by request be put to use nationwide all over Sweden. Most police regions in Sweden have their own regional task forces with somewhat similar training and competence to that of Piketen.
The main task for Piketen is dangerous situations in dangerous environments, e.g. hostage situations and situations including armed dangerous suspects. Other tasks are riot control, escorting VIP's/objects of value and serving high-risk arrest warrants etc.
Piketen has been active since 1979. Its creation was an answer to the events of the Norrmalmstorg robbery in 1973, where robber Jan-Erik "Janne" Olsson took four hostages at Kreditbanken at Norrmalmstorg ("Norrmalm's Square") in Stockholm.
Piketen spends about 30% of its time on training, which is mainly focused on high-risk intervention. For example; one or multiple dangerous perpetrators in rural terrain or in an urban environment and perpetrators in houses or vehicles (also including hostage rescue). Such dangerous interventions require a lot of advanced tactical training. The unit strives to resolve any given situation as peacefully as possible to avoid injury or loss of life and uses highly trained negotiators when tactically possible. Circumstances dictate whether piket officers operate in uniform or civilian clothing. Piketen mostly make use of unmarked civilian vehicles or special assault vehicles.
Piket officers are well-trained in different methods of entry (MOE), such as rappelling and door breaching. They also receive training in close target reconnaissance, close quarters battle, basic medical care, tactical self-defense, and various weapon systems.
Piket officers from Malmö and Gothenburg have been deployed with the EULEX Intervention Group in Kosovo ( Special Team Six), tasked with high-risk operations such as hostage rescue and arresting armed criminals.