penal colony

On Wednesday, a Russian military court ruled that Mr Anderson would spend the first five years of his sentence in prison before being transferred to a penal colony with "strict" conditions.

Currently, the BBC Russian database of war casualties includes 16,171 convicted criminals who were recruited from penal colonies to fight.

As a result, filling Guantanamo with migrants has the potential to turn it into — once again — a permanent penal colony.

"They're not allowed to eavesdrop on meetings between a lawyer and a client in a penal colony in principle - there's a direct legislative ban," he told BBC Russian.

He died in February in a brutal penal colony in the Arctic Circle.