Greece's Supreme Court is deliberating whether Alexandros Giotopoulos, the convicted ringleader of the November 17 terrorist organization, should return to prison or remain under conditional release.

The country’s judges and prosecutors association says comments by the US State Department regarding a prisoner’s release raise concerns about respect for judicial independence and the separation of powers

Washington urged Greek authorities to pursue efforts to return Alexandros Giotopoulos to prison, arguing that justice for victims of terrorism must be upheld.

Greece's Supreme Court prosecutor has filed an appeal to overturn the conditional release of November 17 founder Alexandros Giotopoulos, convicted of 17 murders and sentenced to 17 consecutive life terms plus 25 years.

The former Athens mayor, whose father was assassinated by terrorist orgnaization November 17 in 1989, said the release of convicted member Alexandros Giotopoulos reopened painful questions about justice, memory and public safety.

Giotopoulos was convicted for aiding and abetting in crimes, including the murder of top foreign diplomats, domestic politicians and entrepreneurs.

A relevant judicial council granted the 82-year-old parole; he was serving 17 life sentences for crimes linked to Greece’s deadliest terrorist group