Survivors of the notorious St. Anne's residential school have no right to documents they argued were crucial to compensating them for the horrific abuses they suffered, Ontario's top court has ruled.

Survivors of the notorious St. Anne's residential school square off against the federal government this week in another round of a convoluted legal battle over document secrecy.

The courts must clear up the mystery of why the federal government withheld thousands of relevant documents from survivors who sought compensation for their horrific abuse at a notorious Indian residential school, a judge was told Friday.