Simplify the following text for a Grade 11 native English-speaking person.
Original: While it was formally operated by the Prussian Ministry of Justice , the Gestapo tortured and abused its inmates , as Egon Erwin Kisch recalls in his memories of Spandau Prison .
Simplified: It was supposed to be controlled by the Prussian Ministry of Justice but the Gestapo tortured and abused its inmates , as Egon Erwin Kisch recalls in his memories of Spandau Prison .