Aleksei Dressen (born 1968 in Riga[1]) is a former Estonian Internal Security Service officer convicted for treason.
[2] He was convicted with cooperating with Russian intelligence service FSB.
In 1993 he started working for the reestablished Estonian Security Police.
[3] Despite all this Aleksei Dressen managed to become a director of several different units in the Estonian Security Police.
[4] Aleksei Dressen and his wife Viktoria were arrested on the morning of 22 February 2012 at Tallinn Airport.