Very few people have heard of Detective Sergeant Dion Achtypis - but there may well be no more important investigator in Australia. You won’t see him holding a press conference at a murder scene or commanding a squad of detectives. And he doesn’t use a sledgehammer during raids - he gains access in a much more subtle way. He is part of a three-person team working in the present while exploring the future. Cyber cop Dion Achtypis sits down with John Silvester to discuss Bitcoin, international crime syndicates and the Underbelly series. See omnystudio.com/listener for privacy information.