If you are ever jailed for a crime, you would hope to do your time in jail and be released at the end of it. For a small number of people who are deemed to pose an exceptional risk to society, such as sexual offenders and terrorists, that hasn’t always been the case – and in some jurisdictions they can be kept in jail or given harsh restrictions long after they leave. But now those exceptions are expanding — other offences are increasingly subject to what is called ‘preventative detention’. Today, journalist Kieran Pender on the question of who gets to walk free at the end of their sentence. Socials: Stay in touch with us on Twitter and Instagram Guest: Journalist, Kieran Pender.