A 93-year-old former SS guard in a Nazi Germany concentration camp went on trial Thursday on 5,230 counts of accessory to murder in a Hamburg court – in what could be one of the last Holocaust-related criminal cases, according to reports.

Bruno Dey, who was just 17 when he joined the SS-Totenkopfverbände, or Death’s Head Units, served at the Stutthof concentration camp near Danzig – now Gdansk — in Poland, where some 65,000 people died before it was liberated by the Soviets on May 10, 1945.

“As an SS guard at Stutthof concentration camp between August 1944 and April 1945, he is believed to have provided support to the gruesome killing of Jewish prisoners in particular,” prosecutors said in a statement.

Seated in a wheelchair, Dey wore a hat and hid his face behind a red ring folder as he entered the courtroom.

“The accused was no ardent worshipper of Nazi ideology,” prosecutors said in the indictment. “But there is also no doubt that he never actively challenged the persecutions of the Nazi regime.”

Dey, who told investigators that the carting of lifeless bodies was a daily sight at Stutthof, was “a small wheel in the machinery of murder” as he stood guard, according to prosecutors.

He told prosecutors he was considered unfit for the front because of a heart problem, so instead was sent as a guard to Stutthof — and suggested that with or without him, the slaughters would have taken place.

If he hadn’t been stationed there, “they would have just found someone else,” Dey said.

Citing prosecution documents, the Tagesspiegel newspaper said Dey argued that he never killed anyone — and questioned what a 17-year-old forced to become a camp guard could do against Adolf Hitler’s regime.

His attorney Stefan Waterkamp said his client stood by his statements to authorities.

But he noted that the indictment doesn’t link him to any specific killing, and that it will be up to the court to decide whether just standing guard in a watchtower is enough to convict him.

“Many people were killed in many ways at Stutthof,” Waterkamp said “Some were directly killed, some were killed by starvation, some were killed by typhus — the question is who is immediately responsible?”

Although his trial comes late, Jewish groups stressed its importance in light of far-right anti-Semitic violence like last week’s deadly shooting in the eastern city of Halle.

“Why are you doing this trial today? Remember what happened in Halle last week,” said Efraim Zuroff of the Nazi-hunting Simon Wiesenthal Centre, referring to the attack that included a synagogue among targets, according to AFP.

“Old age should not be a reason not to judge… He was part of the greatest tragedy in history, it was his will.”

Despite his advanced age, Dey is being tried by a juvenile court because he was 17 when he first worked at the camp.

Dey, who now lives in Hamburg, became a baker after the war. Married with two daughters, he supplemented his income by also driving a truck before later taking on a job in building maintenance.

The law finally caught up with him as a result of the legal precedent set when former guard John Demjanjuk was convicted in 2011 on the basis that he took part in the Nazi killing machine at the Sobibor camp in occupied Poland.

Since the landmark 2011 ruling, German courts have convicted Oskar Groening, an accountant at Auschwitz, and Reinhold Hanning, a former SS guard at the same camp, for complicity in mass murder.

Both men were found guilty at age 94 but died before they could be sent to prison.

Dey has been deemed fit to stand trial, but court sessions will be limited to two hours a day, and are scheduled to be held only twice a week.

Medical workers also will be on hand to check on him during the trial, and breaks will be taken every 45 minutes.

With Post wires