It is estimated that there are more than 120 mass graves across Iran that contain the remains of the victims of the 1988 enforced disappearances in Iran and killings.
Many relatives of the massacred victims were never told about the killings or where their loved ones had been buried.
Months later, the families desperate for information about their children or spouses, would be handed a plastic bag with their few possessions. They would be refused any information about the location of the graves and ordered never to mourn them in public.
In many cases, no death certificates were ever issued.
Families who sought to find the graves of their loved ones have been arrested and tortured.
The Iranian regime has so far, taken numerous measures all across Iran to eliminate the traces of the mass graves belonging to the victims of the 1988 massacre. They have built new buildings and roads on these graves, or have bulldozed them and turned them into new cemeteries.
None of the regime officials have ever been prosecuted for their involvement in the massacre and many of those involved are holding high positions of power within the government.