Kontoret för särskild inhämtning (KSI), "The Office for Special Collection", is part of the Swedish Military Intelligence and Security Service

Military Intelligence and Security Service Sweden

Military Intelligence and Security Service , MUST, is a division of the Swedish Armed Forces Central Command. It is responsible for Sweden's military intelligence such as acquiring and presenting information that is of military importance regarding foreign powers and managing the security for vital...

 (MUST, Militära underrättelse- och säkerhetstjänsten) and also one of the most secret parts of the Swedish Armed Forces

Swedish Armed Forces

The Swedish Armed Forces is a Swedish Government Agency responsible for the operation of the armed forces of the Realm. The primary task of the agency is to train, organize and to deploy military forces, domestically and abroad, while maintaining the long-term ability to defend the Realm in the...

. The previous name, until the early 1990s, was Sektionen för särskild inhämtning (SSI), "The Section for Special Collection".

The main task of the office is that of liaison with foreign intelligence organizations and, to a lesser degree, espionage

Espionage

Espionage or spying involves an individual obtaining information that is considered secret or confidential without the permission of the holder of the information. Espionage is inherently clandestine, lest the legitimate holder of the information change plans or take other countermeasures once it...

 through HUMINT

HUMINT

HUMINT, a syllabic abbreviation of the words HUMan INTelligence, refers to intelligence gathering by means of interpersonal contact, as opposed to the more technical intelligence gathering disciplines such as SIGINT, IMINT and MASINT...

.