Nazi war crimes prosecutor launches new probe into 24 former death camp guards Authorities serve files on two dozen suspected war criminals Three women, aged between 90 and 94, among those to be investigated They served in Ravensbrueck, Auschwitz and Majdanek death camps Two dozen more Nazi death camp guards - among them three women - are being probed by prosecutors in Germany for their wartime roles as accomplices to mass murder. Last week a former Dachau guard identified only as Horst P., aged 87, was pictured at his Berlin home with a collage of photos of him in his S.S. uniform beneath the words 'Mein Kampf' - the title of Adolf Hitler's hate-filled autobiography and blueprint for racial war. Now the central authority for the prosecution of Nazi war crimes, based in Ludwigsburg, has sent out files on 24 more wartime suspects who served at some of the most hellish places on earth. Probe: Charlotte S, left, now 94, was an SS guard in the Nazi death camps Ravensbrück and Auschwitz, according to Stasi records, while Gisela S, is pictured right in her card index of concentration camp guards Horror: Prisoners produce weapons in the concentration camp of Dachau during World War Two Despite the fact there are no witnesses left alive to testify as to what they did, prosecutors hope that the mere fact of serving in a place of suffering and death will be enough to bring charges and guilty verdicts. Gertru Elli Schmid, now 92, is one of the suspects. A little old lady in Hamburg, she was formerly an S.S. guard at Majdanek in the Polish city of Lublin where an estimated 235,000 people were murdered during WW2. Prosecutors have traced her S.S. identity card bearing the number 312 which bears the words: 'The holder is authorised to carry arms.' After service in Majdanek she was sent to Auschwitz, also in Nazi occupied Poland, where 1.1 million people were exterminated. Tortured: Prisoners look out from behind a barbed wire enclosure at the Dachau concentration camp in Germany in 1945 Now wheelchair bound, she was tracked down by the popular daily newspaper Bild. Her daughter, pushing her in a wheelchair, told the newspaper: 'We know that my mother had something to do with Auschwitz. We have tried to talk with her about it but her memory doesn't really function any more.' Another S.S. woman has been identifed as Gisela S., a 90-year-old who now lives in an OAP home in northern Germany. She was also employed at Auschwitz. Charlotte S., 94, was a guard at the women's concentration camp of Ravensbrueck where Jewish diarist Anne Frank was briefly incarcerated before being sent to Belsen, where she died. Survivors: French prisoners sing their national anthem, La Marseillaise, upon the liberation of the Nazi concentration camp of Dachau, near Munich, by Allied troops at the end of April 1945 Prosecution: Children behind a barbed wire fence at the Nazi concentration camp at Auschwitz, in southern Poland, where to role of former workers is still the subject of a probe by prosecutors investigating war crimes Ravensbrueck was a notoriously brutal camp and Charlotte S. a feared woman who beat prisoners and unleased her Alsatian dog on them. Tried in Communist East Germany after the war, she was sentenced to 15 months imprisonment for assaults on prisoners and stealing their possessions, but this time prosecutors hope to charge her with accessory to murder. Denial: Oskar Groening, now 92, pictured in his SS uniform worn when he served in Auschwitz, said he was not guilty of a crime in an earlier interview with a German newspaper Another man on the wanted list is Oskar Groening, cleared of war crimes in 1948. He served in Auschwitz as a clerk in the department that sorted through the clothes and possessions of the victims. 'I was an official in the prisoners' possessions administration which basically involved removing the money, jewels and other valuables from the inmates, registering it and sending it back to Berlin. 'They had diamonds and gold worth millions and it was my duty to make sure all of it got to Berlin,' he said. It was completely understood by all that the majority were going straight to the gas chamber, although some believed they were only going to be showered before going to work. Many Jews knew they were going to die. One time a drunken SS man discovered a crying baby on the platform. He grabbed the waif by its legs and smashed its head against the side of a truck. My blood froze when I saw it. On one night in January 1943 he saw for the first time how the Jews were actually gassed. It was in a half-built farmyard near to the Auschwitz-Birkenau camp. A gas chamber was built there. We were searching the wood nearby for prisoners who had escaped,' he went on. There were more than 100 prisoners and soon there were panic-filled cries as they were herded into the chamber and the door was shut. Then a sergeant with a gasmask went to a hole in the wall and from a tin shook Zyklon B gas pellets inside. In that moment the cries of the people inside rose to a crescendo, a choir of madness. These cries I have ringing in my ears to this day. Justice: Files on 24 former workers at Nazi death camps, including Auschwitz in Oswiecim, Poland, pictured, has been sent to German prosecutors I again made an application for a transfer and at the end of October 1944 I was shipped to the Belgian Ardennes where I served with a fighting unit until capture. But you can imagine that down the years I have heard the cries of the dead in my dreams and in every waking moment. I will never be free of them. I have never been back there because of my shame. This guilt will never leave me. I can only plead for forgiveness and pray for atonement. He, too, is in the eye of prosecutors who believe him to be worthy of an indictment of guilty of complicity to mass murder.