The 93-year-old man, a guard at the Nazi Stutthof concentration camp between August 9, 1944 and April 26, 1945, is charged with accessory to murder in 5,320 cases.
The German national is accused of having "supported the insidious and cruel killing of mostly Jewish prisoners," according to the prosecution.
One of his tasks was allegedly to prevent prisoners from escaping, revolting or being liberated. At the beginning of the trial in October last year, the accused had admitted that he had been a guard at Stutthof. However, he said he had not done so voluntarily.
During the trial, he also acknowledged witnessing inmates being locked behind a door but insisted that he did not know that it was a door to lethal gas chamber.
More than 60,000 people are thought to have died in the camp, which was one of the last to be liberated.
The German national is accused of having "supported the insidious and cruel killing of mostly Jewish prisoners," according to the prosecution.
One of his tasks was allegedly to prevent prisoners from escaping, revolting or being liberated. At the beginning of the trial in October last year, the accused had admitted that he had been a guard at Stutthof. However, he said he had not done so voluntarily.
During the trial, he also acknowledged witnessing inmates being locked behind a door but insisted that he did not know that it was a door to lethal gas chamber.
More than 60,000 people are thought to have died in the camp, which was one of the last to be liberated.