He was one of at 1,000 people identified in a United Nations Human Rights Commission Special Representative's Report entitled "Names and Particulars of Persons Allegedly Executed by the Islamic Republic of Iran from July–December 1988", published on January 26, 1989.
Although information about Hatami's arrest and trial was never released, the U.N. report noted that political prisoners of all types were included in the executions: "Most of the alleged victims were members of the Mojahedin.
After the 1979 Revolution, the Tudeh Party declared Ayatollah Khomeini and the Islamic Republic regime revolutionaries and anti-imperialists, and actively supported the new government.
In an open letter to then-Minister of Justice Dr. Habibi in 1988, they argued that the official secrecy surrounding these executions was proof of their illegality.
In their letters to the Minister of Justice in 1988, and to the U.N. Special Rapporteur visiting Iran in February 2003, the families of the victims stated that authorities' accusations against the prisoners had included being "counter-revolutionary, anti-religion, and anti-Islam," as well as being "associated with military action or with various [opposition] groups based near the borders."
In this edict, Ayatollah Khomeini referred to the members of the People's Mujahedin of Iran (PMOI) as "hypocrites" who do not believe in Islam and "wage war against God."
Against the assertion that prisoners were associated with guerrillas operating near the borders, the families submitted the isolation of their relatives from the outside during their detention: "Our children lived in most difficult conditions.