Egil Yngvar Olbjørn was a Norwegian

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

 police leader.

He came to prominence during the occupation of Norway by Nazi Germany

Occupation of Norway by Nazi Germany

The occupation of Norway by Nazi Germany started with the German invasion of Norway on April 9, 1940, and ended on May 8, 1945, after the capitulation of German forces in Europe. Throughout this period, Norway was continuously occupied by the Wehrmacht...

, as a member of Nasjonal Samling and supporter of Jonas Lie

Jonas Lie (government minister)

Jonas Lie was a Norwegian councillor of state in the Nasjonal Samling government of Vidkun Quisling in 1940, then acting councillor of state 1940–1941, and Minister of Police between 1941 and 1945 in the new Quisling government...

. He headed the police branch Ordenspolitiet. To a certain degree he tried to resist German control, and was imprisoned for a short period in the autumn of 1944. He was saved from prison by Jonas Lie, and Olbjørn stood by Lie's side when they entrenched themselves at Skallum

Skallum

Skallum is an area at Stabekk in Bærum, Norway. Named after the local farm, Skallum is known locally for its art gallery and as a recreational area, and nationally as the site of an event in the closing days of World War II in Europe.-Geography:...

 on 8 May 1945 after the Nazi capitulation; however Olbjørn gave up, and left Skallum some days before Lie (who died there on 11 May).

Olbjørn is also known as a judge (together with Karl Marthinsen

Karl Marthinsen

Karl Alfred Nicolai Marthinsen was the Norwegian commander of Statspolitiet and Sikkerhetspolitiet in Norway during the Nazi occupation during World War II....

 and Egil Reichborn-Kjennerud

Egil Reichborn-Kjennerud

Egil Reichborn-Kjennerud was a Norwegian judge, cyclist and sports administrator. He was a Norwegian champion in cycling. During World War II he was a sports leader under the Nazi rule, leading the Norwegian Confederation of Sports from 1940 to 1942.He administrated the court which sentenced...

) in the special court that sentenced Gunnar Eilifsen to death in 1943. During the legal purge in Norway after World War II

Legal purge in Norway after World War II

When the occupation of Norway ended in May 1945, several thousand Norwegians and foreign citizens were tried and convicted for various acts that the occupying powers sanctioned...

, Olbjørn was sentenced harshly for Nazi collaboration.