After the coup, the monarch, Mohammad Reza Shah, established an intelligence service with police powers. The Shah’s goal was to strengthen his regime by placing political opponents under surveillance and repressing dissident movements. According to Encyclopædia Iranica:A U.S. Army colonel working for the CIA was sent to Persia in September 1953 to work with General Teymur Bakhtiar, who was appointed military governor of Tehran in December 1953 and immediately began to assemble the nucleus of a new intelligence organization.