
Advertise on podcast: Lines of Enquiry
Rating
4.8from
This podcast has
17 episodes
Language
EnglishPublisher
GoLoudExplicit
No
Date created
2025/11/03
Latest episode
2026/02/03
Average duration
45 min.
Release period
7 days
Description
Former Garda detective John Sweetman presents Lines of Enquiry, a GoLoud Original true-crime podcast examining some of Ireland’s most compelling crimes, uncovering how evidence, chance, and persistence can bring answers, and sometimes only more questions. Follow the podcast on Instagram: https://www.instagram.com/linesofenquirypodcast/ Contact: [email protected]
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Check latest episodes from Lines of Enquiry podcast
Case Notes #002: Inside True Crime
2026/02/03
In this episode of Lines of Enquiry: Case Notes, John Sweetman is joined by one of Ireland’s leading true crime podcasters, Nules Ní Chléirigh, creator and host of Ireland Crimes and Mysteries.
John and Nules reflect on what draws them to the stories of some of Ireland’s biggest crimes, the realities of working on cases with no clear resolution, and the importance of ethical storytelling when dealing with victims and their families.
They share some of the most impactful cases they have worked on, including those where the smallest detail made a critical difference, and others that have stayed with them long after recording.
The conversation also explores how true crime has evolved as a genre, and the role it can play in prevention, awareness, and in keeping the memory of victims alive.
If you’d like to get in touch, you can email the show at [email protected] and follow @linesofenquirypodcast on Instagram.
Jasmine McMonagle: No Way Out
2026/01/27
28 year old mother of two Jasmine McMonagle loved to write and longed to be a children's author one day.
In 2019, a letter she wrote was sent to the Garda Technical Bureau for examination. In the letter, Jasmine wrote of being held hostage in her own home, of threats against her and her daughters, and of how she would no longer live in fear.
In this episode of Lines of Enquiry, John explains how that letter ended up on his desk, and he looks back on a tragic story of rage, loss and bravery, and of a family torn apart by violence.
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Presented by John Sweetman
Created by Darren Cleary
Episode Written by John Sweetman
Script Edited by Eoin Brennan
Produced by Siobhan Walsh
Produced by Siobhan Maguire
Executive Produced by Eoin Brennan
Executive Produced by Ruth Fitzsimons
Sound Design and Editing by Neil Kavanagh
Audio Editing Support by Ed Smith
Marketing Support by Bríd Walsh and Róisín Reilly
Social Support by Mark Hayes and Robyn Ree
Artwork and Graphics by Eric Rowntree
Antra Ozolina: The Set Up
2026/01/20
When Antra Ozolina was found dead in her home in Kilnaleck, Co Cavan in June 2014, from the outset, the explanation seemed straightforward and the case moved quickly towards closure.
But small details did not sit comfortably. The circumstances raised quiet questions. The timeline felt too neat and the version that was accepted left little room for doubt or for scrutiny.
In this episode of Lines of Enquiry, John Sweetman revisits the death of Antra Ozolina, examining how early assumptions can shape an investigation, how quickly a version of events can become fixed, and how the how the easy answer is not always the right answer.
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Presented by John Sweetman
Created by Darren Cleary
Episode Written by Darren Cleary
Script Edited by Eoin Brennan
Produced by Siobhan Walsh
Produced by Siobhan Maguire
Assistant Produced by Aoife Plunkett
Executive Produced by Eoin Brennan
Executive Produced by Ruth Fitzsimons
Sound Design and Editing by Neil Kavanagh
Audio Editing Support by Ed Smith
Marketing Support by Bríd Walsh and Róisín Reilly
Social Support by Mark Hayes and Robyn Ree
Artwork and Graphics by Eric Rowntree
Seamus Ruddy: Hidden Clues I Part 2
2026/01/14
The arrival of two detectives with very different backgrounds reinvigorates the search for Seamus Ruddy. As the new investigators search the darkest corners for information, they do it with a set of forensics skills never before seen in Ireland.
The Ruddy family hold on to hope of finally ending their long nightmare, and a new source of information could prove to be the key. But there will be many false dawns, before what could be their final chance to bring Seamus home.
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Presented by John Sweetman
Created by Darren Cleary
Episode Written by Eoin Brennan
Produced by Siobhan Walsh
Produced by Siobhan Maguire
Executive Produced by Eoin Brennan
Executive Produced by Ruth Fitzsimons
Sound Design and Editing by Neil Kavanagh
Audio Editing Support by Ed Smith
Marketing Support by Bríd Walsh and Róisín Reilly
Social Support by Mark Hayes and Robyn Ree
Artwork and Graphics by Eric RowntreeWe now have an instagram page, you can follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Seamus Ruddy: The Long Search | Part I
2026/01/13
In May of 1985, Seamus Ruddy went to meet three men in Paris. They were men he knew from a past life, in Ireland. Seamus had left that life behind, to start a new one in the French capital. His family had asked him not to go to the meeting, but Seamus had been assured he would be safe.
He was never seen again after that night, and his disappearance would lead to a search spanning decades. The Ruddy family refused to give up their hunt for answers, facing down intimidation and holding out hope even against the most insurmountable odds.
This story would eventually join others, as the Ruddy family realised they were not the only ones searching for their missing loved ones, and pushing for answers from a dark period in Irish history. Seamus was eventually considered one of The Disappeared, the group of people suspected of being kidnapped, killed and secretly buried by Republican paramilitary groups during The Troubles.
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Presented by John Sweetman
Created by Darren Cleary
Episode Written by Eoin Brennan
Produced by Siobhan Walsh
Produced by Siobhan Maguire
Executive Produced by Eoin Brennan
Executive Produced by Ruth Fitzsimons
Sound Design and Editing by Neil Kavanagh
Audio Editing Support by Ed Smith
Marketing Support by Bríd Walsh and Róisín Reilly
Social Support by Mark Hayes and Robyn Ree
Artwork and Graphics by Eric RowntreeWe now have an instagram page, you can follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Jastine Valdez: Abducted in Plain Sight
2026/01/06
Jastine Valdez was abducted in broad daylight on a rural road in Enniskerry, Co Wicklow, in May 2018. The 24-year-old had just stepped off a bus that dropped her only a few minutes’ walk from her home. Just moments later, a woman driving along that quiet country road spotted a man seemingly trying to force a young woman into his car.
What followed was a frantic garda manhunt, as they realised Jastine had been abducted in broad daylight – but without any idea who may have done it, or why. What was to follow would be a tragic, terrifying case that would shock all of Ireland.
In this episode of Lines of Enquiry, John Sweetman takes us through that frenetic investigation by gardai moments, and their efforts to seek justice for Jastine, and her family in Ireland and the Philippines.
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Presented by John Sweetman
Created by Darren Cleary
Episode Written by John Sweetman
Script Edited by Eoin Brennan
Produced by Siobhan Walsh
Produced by Siobhan Maguire
Executive Produced by Eoin Brennan
Executive Produced by Ruth Fitzsimons
Sound Design and Editing by Neil Kavanagh
Audio Editing Support by Ed Smith
Marketing Support by Bríd Walsh and Róisín Reilly
Social Support by Mark Hayes and Robyn Ree
Artwork and Graphics by Eric Rowntree
Case Notes #001: The Inbox
2025/12/23
In this, Lines of Enquiry’s inaugural ‘Case Notes’, John Sweetman introduces a new strand of his hit true crime podcast series. Stepping away from any one specific case in detail and instead revisiting past investigations and responding to listener questions, John takes us behind the scenes of Lines of Enquiry.
This first episode of ‘Case Notes' is also the last in Season 1 of Lines of Enquiry. Reflecting on his first season, John is in conversation with Darren Cleary, creator of Lines of Enquiry and Head of Digital Audio at Bauer Media, who hears all about Season 2, which goes out on January 6th, 2026, with further 'Case Notes' also on the way.
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Remember, you can contact the show at [email protected]
Mark O'Sullivan: Terror on the Farm
2025/12/16
When Anne O'Sullivan was diagnosed with terminal cancer, tensions within her family about who would inherit her substantial plot of farm land came to the surface.
Soon, Anne would find herself awake before dawn, running through fields and ditches to a neighbour's house to get help as a terrible darkness descended on the family farm.
This is a tragic story that saw a family torn apart as their home became consumed by fear and threats of violence towards Anne and her eldest son, Mark. Those rising tensions would lead to the most unfathomable and shocking moment of hatred and rage.
In this episode of Lines of Enquiry, John tracks the descent into violence and revisits his case notes on the letters that proved crucial to any understanding of events of that tragic day.
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Presented by John Sweetman
Created by Darren Cleary
Episode Written by Eoin Brennan
Script Edited by John Sweetman
Research by Siobhan Maguire & Eoin Brennan
Executive Produced by Eoin Brennan
Executive Produced by Ruth Fitzsimons
Produced by Siobhan Walsh
Produced by Siobhan Maguire
Sound Design and Editing by Neil Kavanagh
Audio Editing Support by Ed Smith
Marketing Support by Bríd Walsh and Róisín Reilly
Social Support by Mark Hayes and Robyn Ree
Artwork and Graphics by Eric Rowntree
Kelly Lynch: Beneath the Surface
2025/12/09
On St Patrick’s weekend 2024, 23-year-old Kelly Lynch travelled from her home in Armagh to Monaghan to support her boyfriend after a sudden death in his family. Two nights later, on the walk home from the pub in the town, on the Friday night of a busy bank holiday, Kelly disappeared.
She was found in the Ulster Canal on the Sunday morning. Gardaí said Kelly had drowned and quickly confirmed they were not treating her death as suspicious. But as the details emerged, her family were left with devastating questions.
In this episode of Lines of Enquiry, John Sweetman follows Kelly’s final movements, the contradictions at the heart of the investigation, and the campaign led by a family desperate for answers.
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Presented by John Sweetman
Created by Darren Cleary
Episode Written by Darren Cleary
Script Edited by Eoin Brennan
Produced by Siobhan Walsh
Produced by Siobhan Maguire
Executive Produced by Eoin Brennan
Executive Produced by Ruth Fitzsimons
Sound Design and Editing by Neil Kavanagh
Audio Editing Support by Ed Smith
Marketing Support by Bríd Walsh and Róisín Reilly
Social Support by Mark Hayes and Robyn Ree
Artwork and Graphics by Eric Rowntree
Nora Sheehan: The Past Speaks | Part II
2025/12/03
The prime suspect walks free for the murder of Nora Sheehan after the death of the pathologist left the DPP's case unable to proceed to trial.
In this second chapter of a two-part investigation, John Sweetman looks at how four decades after Nora Sheehan’s disappearance and death in 1981, advances in forensic technology breathed new life into a long-dormant investigation.
In this episode, we explore how preserved evidence from fibres and paint fragments to a partial DNA profile was re-examined by investigators as as long-preserved traces ignite a renewed hunt for answers.
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Presented by John SweetmanCreated by Darren ClearyEpisode Written by Darren ClearyScript Edited by Eoin BrennanExecutive Produced by Eoin BrennanExecutive Produced by Ruth FitzsimonsProduced by Siobhan WalshProduced by Siobhan MaguireSound Design and Editing by Neil KavanaghAudio Editing Support by Ed SmithMarketing Support by Bríd Walsh and Róisín ReillySocial Support by Mark Hayes and Robyn ReeArtwork and Graphics by Eric Rowntree
Nora Sheehan: The Last Walk | Part I
2025/12/02
In June 1981, Nora Sheehan left the South Infirmary Hospital in Cork and disappeared into the night. In the hours that followed, she was seen by witnesses walking alone after midnight, a familiar figure on dark roads and quiet streets.
Days later, her battered body was discovered dumped in woodland far from the city. Her murder shocked Cork and marked the beginning of a case that would stretch across generations.
In this opening chapter of a two-part investigation, John Sweetman reconstructs Nora’s final movements, the witness sightings after midnight, and the immediate aftermath of her disappearance. What emerges is the story of a vulnerable woman who vanished in plain sight and a killing that would become one of Ireland’s longest-running cold cases.
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Presented by John Sweetman
Created by Darren Cleary
Episode Written by Darren Cleary
Script Edited by Eoin Brennan
Executive Produced by Eoin Brennan
Executive Produced by Ruth Fitzsimons
Produced by Siobhan Walsh
Produced by Siobhan Maguire
Sound Design and Editing by Neil Kavanagh
Audio Editing Support by Ed Smith
Marketing Support by Bríd Walsh and Róisín Reilly
Social Support by Mark Hayes and Robyn Ree
Artwork and Graphics by Eric Rowntree
Barbara Walsh: Vanished after Dark
2025/11/25
The Walsh house in rural Connemara is quiet by 4am on the 22nd of June 1985. Earlier in the night it was full of people celebrating the brief return of two family members who had emigrated. But now the friends, neighbours and even the local Gardaí who had attended the party have all dispersed. So, when 14 year old Jacquie Walsh wakes up in the middle of the night the only person she sees is her mother, 33 year old Barbara asleep on the couch. Jacquie tries to wake her but when she does not stir, Jacquie places a pillow beneath her head and drapes a blanket around her before heading to bed. Barbara Walsh was never seen again.
For years, her family were told that the young mother of 7 must have wandered off – Despite not having a car and living over 50 miles away from Galway city.
In this episode, former Garda forensic detective John Sweetman goes back to 1985 and examines the original investigation, the new leads for the cold case team and asks where is Barbara Walsh?
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Presented by John Sweetman
Created by Darren Cleary
Episode Written by Siobhan Walsh
Script Edited by Eoin Brennan
Executive Produced by Eoin Brennan
Executive Produced by Ruth Fitzsimons
Produced by Siobhan Walsh
Assistant Produced by Siobhan Maguire
Sound Design and Editing by Neil Kavanagh
Audio Editing support by Ed Smith
Marketing support by Bríd Walsh and Roisin Reilly
Social support by Mark Hayes and Robyn Ree
Artwork and graphics by Eric Rowntree
Marie Dillon: Horror at Home
2025/11/18
Gardaí are called to a house in north Dublin, where they make a grim discovery. 72-year-old Marie Dillon has been found murdered in a violent attack inside her home.
As investigations begin, it becomes clear there are no suspects and no obvious clues.
In this episode of Lines of Enquiry, John Sweetman revisits the case that brought him face to face with his first murder scene at just 26 years of age, in his early days training to become a forensic fingerprint expert.
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Presented by John Sweetman
Created by Darren Cleary
Episode Written by John Sweetman
Script Edited by Eoin Brennan
Executive Produced by Eoin Brennan
Executive Produced by Ruth Fitzsimons
Produced by Siobhan Walsh and Siobhan Maguire
Sound Design and Editing by Neil Kavanagh
Audio Editing support by Ed Smith
Marketing support by Bríd Walsh and Roisin Reilly
Social support by Mark Hayes and Robyn Ree
Artwork and graphics by Eric Rowntree
Video by Ger Walsh
Robert Holohan: Robbed of Tomorrow
2025/11/11
On 4 January 2005, 11-year-old Robert Holohan left his home to play on his bike in Midleton, Co Cork and never returned. What began as a desperate search for a missing boy quickly became one of the most emotionally charged murder investigations Ireland had ever witnessed. Thousands turned out to look for him. Gardaí deployed every resource available. For a week, the country hoped against hope. Then came the devastating discovery: Robert had been killed. The search for the young boy soon became a hunt for a killer. The eventual truth would prove to be more devastating than anyone had imagined.
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Presented by John Sweetman
Created by Darren Cleary
Episode Written by Darren Cleary and John Sweetman
Script Edited by Eoin Brennan
Executive Produced by Eoin Brennan
Executive Produced by Ruth Fitzsimons
Produced by Siobhan Walsh
Assistant Produced by Siobhan Maguire
Sound Design and Editing by Neil Kavanagh
Audio Editing support by Ed Smith
Marketing support by Bríd Walsh and Roisin Reilly
Social support by Mark Hayes and Robyn Ree
Artwork and graphics by Eric Rowntree
The Beast: The Midlands Letters
2025/11/06
A sinister, disturbing handwritten letter arrives into Garda HQ. It has been sent anonymously to a school in the midlands. There are 23 pages, promising terrible crimes to come, and detailing the writer’s twisted plans to abduct and kill teenage girls.
Soon after, two more arrive – again sent to schools across the Irish midlands. Gardai then realise this is not their first encounter with the anonymous writer, as they discover records of a strange hideout found in the woods in Offaly many years ago. More letters arrive, sent to Garda stations and found by members of the public.
Fear spreads as the writer goes further and begins naming potential targets, all teenage girls at a local Offaly school. Gardai now face a race against time to find him, before he can put his evil plans into action.
As part of our launch week of Lines of Enquiry we are releasing two episodes this week, including this one. From next week we will release weekly, every Tuesday morning.
We now have an instagram page, we would appreciate if you could please follow the podcast here: https://www.instagram.com/linesofenquirypodcast/
Presented by John Sweetman
Created by Darren Cleary
Episode Written by Eoin Brennan, Siobhan Maguire and John Sweetman
Executive Produced by Eoin Brennan
Executive Produced by Ruth Fitzsimons
Produced by Siobhan Walsh
Assistant Produced by Siobhan Maguire
Sound Design and Editing by Neil Kavanagh
Episode Edited by Eoin Brennan
Editing support by Ed Smith
Marketing support by Bríd Walsh and Roisin Reilly
Social support by Mark Hayes and Robyn Ree
Artwork and graphics by Eric Rowntree
Podcast reviews
Read Lines of Enquiry podcast reviews
Magalla704 2025/12/09
Love this format
What a great series. Clear, concise & no interminable ads….
Mac an tSionnaigh 2026/01/02
Kelly Lynch
I found this episode to be repetitious with more than a touch of the melodramatic. The presentation of thoughts and feelings of those involved present...
myfavwalleye 2025/12/24
Love this podcast
I find his voice so easy to listen to. Very interesting.
MurderNote 2025/11/17
Excellent
This is a fantastic podcast! It’s refreshing and interesting to hear stories of another country. I’m here for it! It feels like a privilege to be able...
Devine Ms D 2025/11/08
It’s an early Christmas present.
I can’t get enough! It’s my favorite format, good stories, and excellent host. I think he might be Santa Clause.
b3853r 2025/11/05
Great start to this podcast
While I sit here missing Mens Rea, I value a new podcast with an Irish lean.
Crime Anonymous 2025/11/05
Perfect start!!
Very good!! Perfect narration and background music. Looking forward to more episodes!
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