Reports of the Sicherheitspolizei (SIPO-Security Police) and the Sicherheitsdiens (SD-Security Service) headquarters regarding the activities taking place in the Soviet Union including the activities of the Einsatzgruppen The initial reports are reports (Referat) from the Director of the IVA1 (Gestapo-struggle against the Communists) in the Reichssicherheitshauptamt (RSHA-Reich Security Headquarters) that were distributed among officials in the RSHA, with Himmler foremost among them; beginning with Report No. 4, the reports received the SIPO and SD Headquarters heading, with the acronym IVA1 below the title; The reports included three sections: First Section - Political events, Second Section (this section not included in the initial reports) - Reports of the Einsatzgruppen, Third Section - Military events (focusing on the territories inside the Soviet Union); First Section - divided by country, reporting primarily regarding the activities that took place against the regime (Communists, Communist propaganda and underground organizations) and against the opponents of the regime; Second Section - based on reports from the Einsatzgruppen and the Ensatzkommandos who are under their command, providing information regarding their location and movements; important events in locations in which they were active; information regarding the local population (the people's attitude towards the Germans and their economic situation) and the activities of the units themselves including acts of murder.