Since 1971 he has been employed by the Danish police.
The Danish police also were criticized for their handling of the riots.
During the same time, Danish police have made frequent sweeps of the area.
According to Danish police, the group had been under investigation for quite a while.
Even though this applied to the Danish police as well, many were reluctant to cooperate.
The names of those communists came from the registries that had been handed over by Danish police.
April 9, 2010, Danish police arrested him in order to start an extradition trial.
Some charges have been brought, which the Danish police have investigated.
The Danish police revealed a hypothesis regarding the purpose of the bomb.
From 1852 to 1861 he worked secretly as an informant for the Danish police.