Valtiollinen poliisi was the predecessor of the Finnish Security Intelligence Service.

Etsivä keskuspoliisi

Valtiollinen poliisi has its roots in Osasto III ("Section III") which was formed in summer 1918 by the right wing (so called "whites") of the Finnish Civil War

Finnish Civil War

The Finnish Civil War was a part of the national, political and social turmoil caused by World War I in Europe. The Civil War concerned control and leadership of The Grand Duchy of Finland as it achieved independence from Russia after the October Revolution in Petrograd...

. Its mission was to conduct military intelligence and to monitor the other side of the civil war, the so called "reds." In the beginning of 1919 the passport section of the general staff which was responsible for internal intelligence was moved under the supervision of the internal ministry and the organizational changes were continued by forming Etsivä keskuspoliisi (EK), which translates directly to "Detecting central police". Etsivä keskuspoliisi was made permanent at the end of 1927, and in December 1937 its name was changed to Valtiollinen poliisi. Later famous politician and president of Finland Urho Kekkonen

Urho Kekkonen

Urho Kaleva Kekkonen , was a Finnish politician who served as Prime Minister of Finland and later as the eighth President of Finland . Kekkonen continued the “active neutrality” policy of his predecessor President Juho Kusti Paasikivi, a doctrine which came to be known as the “Paasikivi–Kekkonen...

 worked as abitur

Abitur

Abitur is a designation used in Germany, Finland and Estonia for final exams that pupils take at the end of their secondary education, usually after 12 or 13 years of schooling, see also for Germany Abitur after twelve years.The Zeugnis der Allgemeinen Hochschulreife, often referred to as...

 of jurisprudence

Jurisprudence

Jurisprudence is the theory and philosophy of law. Scholars of jurisprudence, or legal theorists , hope to obtain a deeper understanding of the nature of law, of legal reasoning, legal systems and of legal institutions...

 and lawyer in EK.

Valpo II, the red Valpo

Otto Brusiin

Otto Brusiin

Otto Brusiin was a leading Finnish teacher of law. He taught at Helsinki from 1949 on before he was made assistant professor at Helsinki in 1955 and professor at Turku in 1961....

 was Valpo's director from 26 April 1945 to 10 January 1946 in which time many people were fired from Valpo and replaced with communists and other radical leftists. Many of these people used to be watched by Valpo. This era was commonly called as the "Red valpo", more officially "Valpo II."

After Brusiin, Valpo had many directors who served only short periods. The true director was considered to be the extra department head Aimo Aaltonen who was also the president of Suomen kommunistinen puolue (SKP) ("The Communist Party of Finland

Communist Party of Finland

The Communist Party of Finland was a communist political party in Finland. The SKP was a section of Comintern and illegal in Finland until 1944.SKP did not participate in any elections with its own name. Instead, front organisations were used...

"). He had to resign in 1947 for internal party reasons. His status was later confirmed in Ahlbäck's committee's hearings, and the investigation led to criminal charges against Brusiin and other personnel from Valpo for negligence of official duty.
Valpo was decommissioned in 1948 and replaced with Suojelupoliisi

Suojelupoliisi

The Finnish Security Intelligence Service is the intelligence agency of Finland in charge of national security. The agency's staff is composed of 220 policemen with additional training...

which started its operation at the beginning of 1949 and had a considerably smaller staff.
The archives of Etsivä keskuspoliisi and Valtiollinen poliisi are public up until year 1948, and they are kept in the Finnish National archives.