Moghaddam, along with Nassri and Nassiri's predecessor, Hassan Pakravan, was found guilty of corruption and subsequently sentenced to death on 11 March 1979, in accordance with the order of Ayatollah Khomeini.

During his time at the Officers' School and the University of Tehran, Nasser not only acquired a solid foundation in military and security studies but also developed a proficient command of the French and English languages.

[5] In 1959, the "Special Intelligence Bureau" was established in Iran, and General Hossein Fardoust extended an offer to Moghaddam to collaborate with him.

[3] His responsibilities encompassed overseeing the actions of revolutionary groups and providing the Shah with weekly updates on the public sentiment, a task he purportedly executed competently.

He emphasized the necessity of exemplary punishment for corrupt government officials associated with the royal family and stressed the importance of engaging in a constructive dialogue with the clergy.

[15] Lieutenant General Nasser Moghaddam was appointed as the new head of the secret police[16][17] due to his connections within the opposition, including the Shiite clergy.

[20] Upon assuming his position, Moghaddam focused on dismantling the influence of Nematollah Nassiri, who was then serving as the Iranian ambassador to Pakistan.

Reports suggest that the CIA exerted pressure on Nassiri and his supporters to remove them from the intelligence service, with Nasser Moghaddam being the only viable replacement.

[23] His appointment to his new position was a result of the Shah's desire to integrate the army and SAVAK,[24] aiming to implement democratic reforms within the armed forces.

[25] Following the riots of 21–22 July 1978, the Shah convened a meeting with two generals, Fardoust and Moghaddam, to discuss an action plan against the protesters.

[27] Shortly after Moghaddam's appointment, a meeting took place between senior SAVAK officials and the leadership of the Iraqi intelligence service.

[28] Notably, in early September 1978, Barzan Ibrahim al-Tikriti, the Director of Iraqi Intelligence, secretly traveled to Tehran.

Following the revolution's victory, representatives of Mehdi Bazargan approached Moghaddam and offered him a prominent role in the establishment of a new security service.

[33] On 15 February, following the execution of former SAVAK director Nematohla Nassiri, Moghaddam realized that his situation was dire and decided to go into hiding temporarily, intending to leave the country at the earliest opportunity.