Nicole Madigan felt like she couldn't escape her stalker Karissa as she continued to bombard her with endless harassment. Finally, she was pushed too far. In part two Nicole talks to Gary about the long process to get justice and protect herself and her family. See omnystudio.com/listener for privacy information.

Nicole Madigan is an accomplished and confident journalist, but her life was totally turned upside down by the actions of a stalker. In part one, she tells Gary how a chance encounter with a stranger led to a campaign of abuse and harassment that would last for years. See omnystudio.com/listener for privacy information.

He walked beside John Ibrahim for a decade, and now Neil Cummins tells us why he had to walk away. He also shares what it was like to pick up the pieces of his life and rebuild into something stronger. See omnystudio.com/listener for privacy information.

Neil Cummins has dealt with bikie brawls, street fights and the general chaos that was life on the streets of King's Cross. Neil worked his way from nightclub doorman to personal bodyguard to John Ibrahim, the king of the cross himself, today he takes us into the seedy underbelly of that time. See omnystudio.com/listener for privacy information.

Chris O'Connor was the lead investigator on Task Force ‘Spectrum’ which was responsible for investigating the abduction and sexual assault of several schoolgirls in Victoria and sadly the murder of one of those girls. This case is wildly known as the Mr Cruel Investigation. Today Chris gives us a rare inside look into the decades-long investigation. See omnystudio.com/listener for privacy information.

Chris O'Connor is a former Detective Senior Sergeant specialising in Sex Crime Investigation and during his 36-year career in the Victorian Police, he was widely regarded as one of the most experienced detectives in this field. In part one, Gary and Chris talk about what it was like investigating some of the worst predators in the country, from child abusers to a man who was purposefully infecting people with HIV. See omnystudio.com/listener for privacy information.

The road to recovery is seldom a straightforward and easy path. Duncan Burns cheated death and walked away from his club, but it took some more hard lessons to put him on his current mission as a youth worker looking to keep young offenders out of detention centres and change the way we look at crime. See omnystudio.com/listener for privacy information.

Duncan Burns was a lost young man searching for a tribe when he first met a bikie gang member who introduced him to a lifestyle of fast rides, fast living and plenty of drugs. Unfortunately for Duncan, this world isn't one you can survive in long and in 2005 he was shot in a gang war and left dying in the gutter. See omnystudio.com/listener for privacy information.

Looking at Nader Hamdan's early life, a betting man might expect him to end up in and out of jail - or even dead. But Nader defied the odds through grit, determination and his unrelenting passion for becoming a champion boxer. In part two of his chat with Gary, Nader talks about what gave him the drive to change and what he wants to tell young men who are struggling to stay on the right side of the law. See omnystudio.com/listener for privacy information.

Nader 'Lionheart' Hamdan is a legend of the boxing world, in 2003 he was ranked number two in the world in the middleweight division, just behind Oscar De La Hoya. But Nader's rise to the top wasn't easy, he was troubled and violent in his youth, in part one he talks about his years in a juvenile detention centre after an incident with a policeman's gun. See omnystudio.com/listener for privacy information.

Leesa and Ron Topic felt like they were in a living nightmare, they had endless questions about how their average ordinary daughter could end up shot dead by police. It took an inquest for them to find answers. In part two, the couple shares what Courtney's legacy is and why they will never stop fighting for change. See omnystudio.com/listener for privacy information.

‘Make sure you hang out the washing’ - This was the last communication Leesa Topic had with her daughter Courtney. It was written on a note she left in the kitchen of their West Hoxton Park home. Within hours of hanging out the family’s washing, Courtney Topic aged just 22, who had never been in trouble was shot dead by police. Today, we are talking to Leesa and Ron Topic, the parents of Courtney. See omnystudio.com/listener for privacy information.

Tom Carroll was at the top of his game, he had it all: world championships, a loving family, fame and fortune - but he also had a dark secret, Tom was an addict. In part two of his chat with Gary, he talks about his experiences with crystal meth and cocaine, and the rock bottom moment that led him to recovery and enlightenment. See omnystudio.com/listener for privacy information.

Tom Carroll has caught his share of killer... waves. A two-time world champion surfer, Tom has had huge highs and crashing lows. In part one of his chat with Gary, Tom talks about what drew him to surfing, his career and how he became involved in drugs. See omnystudio.com/listener for privacy information.

Matt Klein says that he was drawn to the kindness and community spirit of the Twelve Tribes, but eventually, the bizarre and sometimes cruel rules governing the group led to him fleeing with his children. His wife remains in the group and has cut off contact with Matt and the family. See omnystudio.com/listener for privacy information.

The tables were turned when Matty Johns sat down with Gary to ask him about everything from his early career to his post-policing life. See omnystudio.com/listener for privacy information.

The inside workings of the Twelve Tribes religious group here in Australia and around the world are shrouded in mystery. We're joined by Journalist Tim Elliott who is pulling back the curtain and exposing some dark truths. See omnystudio.com/listener for privacy information.

In part two of Gary's chat with recently retired Scotland Yard Detective David Leach, the pair talk about David's work in some very high-profile counter-terrorism investigations and his work on a decade-old unsolved murder. See omnystudio.com/listener for privacy information.

Not everyone can say they stared down a serial killer, but recently retired Scotland Yard Murder Squad and Counter Terrorism Detective David Leach has done just that. In part one of his chat with Gary, David talks about the investigation that led to the arrest of Levi Bellfield, a serial killer that had been terrorising London until his arrest in 2004. See omnystudio.com/listener for privacy information.

In part two of Ben and Amy Smith's conversation with Gary, the pair describe the strain of being accused of sexual assault, the experience of going through court and what it felt like to hear the jury finally deliver their verdict. See omnystudio.com/listener for privacy information.