Original: Under the overall administration of the Schutzstaffel ( SS ) , it was administered by the Reichssicherheitshauptamt ( RSHA ) ( '' Reich Main Security Office '' ) and was considered a sister organization of the Sicherheitsdienst ( SD ) ( '' security service '' ) and also a suboffice of the Sicherheitspolizei ( SIPO ) ( '' security police '' ) .
Simplified: Under the overall administration of the SS it was administered by the Reichssicherheitshauptamt and was considered a dual organization of the Sicherheitsdienst and also a suboffice of the SD .