By order of Putin, a special commission was created to investigate the circumstances of the explosion, including representatives of the Ministry of Emergency Situations, the Ministry of Transport, the FSB, the Ministry of Internal Affairs and the National Guard. The Investigative Committee opened a criminal investigation into the explosion.[37] Representatives of the special services drew attention to the shift that failed to detect the truck with explosives, despite the complexes installed at the entrance to the bridge to watch for suspicious cargo.[38]