Locking up terrorists indefinitely

One of Australia's most notorious terrorist prisoners could be held in detention even after he finishes his term later this year. In 2008, Abdul Nacer Benbrika was jailed for 12 years after he was found to have been the spiritual leader of a terror cell that was plotting attacks in Australia. This November, he will have done his time, but authorities are considering whether it's safe to release him. Today on The Signal, we dig into the debate around prolonging a convicted criminal's sentence beyond its end date. What does the law allow? Can it be justified? Featured: Dan Oakes, Reporter, ABC Investigations Peter Moroney, Former Detective Sergeant, NSW Police Dr Clarke Jones, Senior Research Fellow, Research School of Psychology, Australian National University