The translation seems to be correct but it is not the original inscription of the pic which reads:
"Dessau, Germany, 1945. In a camp of displaced persons waiting for repatriation, a Gestapo informer who had pretended to be a refugee is discovered and exposed by a camp inmate whose face is illuminated by the strong, sharp light of rage."
The photographer was Henri Cartier-Bresson (August 22, 1908 – August 3, 2004), a French photographer considered to be the father of modern photojournalism. He was an early adopter of 35 mm format, and the master of candid photography. He helped develop the "street photography" or "real life reportage" style that has influenced generations of photographers who followed.
When World War II broke out in September 1939, he joined the French Army as a Corporal in the Film and Photo unit. During the Battle of France, in June 1940 at St. Dié in the Vosges Mountains, he was captured by German soldiers and spent 35 months in prisoner-of-war camps doing forced labor under the Nazis. As Cartier-Bresson put it, he was forced to perform "thirty-two different kinds of hard manual labor." He worked "as slowly and as poorly as possible." He twice tried and failed to escape from the prison camp, and was punished by solitary confinement. His third escape was successful and he hid on a farm in Touraine before getting false papers that allowed him to travel in France.
In France, he worked for the underground, aiding other escapees and working secretly with other photographers to cover the Occupation and then the Liberation of France. In 1943, he dug up his beloved Leica camera, which he had buried in farmland near Vosges. At the end of the war he was asked by the American Office of War Information to make a documentary, Le Retour (The Return) about returning French prisoners and displaced persons.