In 2000 Selen began his career at the
Federal Criminal Police Office and
Minister of the Interior Otto Schily. The attack failed as the bombs did not explode. After an extensive review of videos from surveillance cameras, one of the perpetrators was captured in the
train station in Kiel. Afterwards, his accomplice in Lebanon surrendered as well. Selen entered the Ministry of the Interior in 2006, and initially his work was focused on the ban of the
Salafist organization
Millatu Ibrahim. He served as the head of the international counter-terrorism department until 2009. Between 2009 and 2012 he was assigned to the Headquarters of the Federal Police in the counter-piracy and human trafficking department. From 2012 onwards he worked in the Ministry of the Interior where in early 2016 he was given the task to coordinate between Turkey and Germany on terror-related issues. As a result, he and the diplomat
Emily Haber often travelled to
Ankara, Turkey. In their conversations with the Turkish authorities, he refused to extradite members of the
Gülen movement, and conversed through a translator in the
German language most of the time. From 2016 Selen was in charge of security for the travel agency
TUI. In January 2019 he assumed the role of Vice President of the Federal Office for the Protection of the Constitution (BfV), succeeding
Thomas Haldenwang who was appointed president of the BfV. == Reception ==