Episode 1 is published Sunday 19th April, subscribe on Apple Podcasts, follow on Spotify or wherever you listen to podcasts now 
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Introducing - On Guard: Stories From Inside Australia's Toughest Prisons

In Australia former detective Roger Rogerson has come to epitomise the bad cop - up to his elbows in corruption of public officials, drug crime and murder. The Daily Telegraph crime editor Mark Morri and former NSW Assistant Commissioner Clive Small discuss Rogerson's life and crimes from his career in the criminal investigation branch in the 1960s to the murder of drug dealer Jamie Gao in 2014.