Mikhail Ivanovich Trepashkin ( ) ( born 7 April 1957 ) is a Moscow attorney and former Federal Security Service ( FSB ) colonel who was invited by MP Sergei Kovalev to assist in an independent inquiry of the Russian apartment bombings in September 1999 that followed the Dagestan war and were one of the causes of the Second Chechen War . During his investigation he was arrested by the FSB and convicted to four years of imprisonment for " revealing state secrets " . Mikhail Trepashkin started working for the KGB in 1984 as an investigator of underground trade in stolen art . At the beginning of the 1990s , Trepashkin moved to the Internal Affairs department of the FSB , where he worked for Nikolai Patrushev . He investigated connections of FSB officers with criminal groups . He won a medal for intercepting a plane-load of weapons sold by FSB officers to Chechen rebels
Russian apartment bombings
Russian apartment bombings
Mikhail Trepashkin