This final episode, recorded in December 2024, considers what the Dawn Sturgess Inquiry will achieve, and what might change as a result. BBC Security Correspondent Frank Gardner, legal commentator Joshua Rozenberg and Dan O’Brien from BBC News discuss what we’ve heard, what happens next, and what impact the Salisbury Poisonings have had around the world.

Executive production by Mary Sanders and Naomi Wordley.

After 7 weeks and over a hundred hours of evidence, the public hearings of the Dawn Sturgess Inquiry come to an end. In this episode, the main participants, including Dawn’s family, make their final statements to the Chair.

This episode was made by Marie Lennon, Andy Howard, Tom Ryan & Dan O’Brien.

Executive production by Mary Sanders and Naomi Wordley.

When the agents suspected of poisoning Sergei and Yulia Skripal with Novichok left Salisbury, what did they do with the nerve agent and how did the deadly chemical weapon end up in the hands of Charlie Rowley four months later? In this episode, we hear the most likely theories from Counter Terror Police and discover why some parts of this mystery are still unsolved. The Russian state and the suspects have always denied any involvement.

This episode was made by Marie Lennon, Andy Howard, Tom Ryan & Dan O’Brien.

Executive production by Mary Sanders and Naomi Wordley.

The widow of former Russian spy Alexander Litvinenko explains why she feels lessons weren’t learned between her husband’s assassination and the Salisbury Poisonings. Marina Litvinenko warns that British citizens need to be protected from foreign agents who ‘come to play their games’ in the UK and she recalls the moment she heard about the Salisbury nerve agent attack.

This episode was made by Marie Lennon, Andy Howard, Tom Ryan & Dan O’Brien.

Executive production by Mary Sanders and Naomi Wordley.

As Salisbury starts to reopen in the summer of 2018, the authorities weigh up how to keep the public safe, when they know there could be more Novichok out there. Questions are asked about whether enough was done to protect people from accidentally picking up a discarded chemical weapon.

This episode was made by Marie Lennon, Andy Howard, Tom Ryan & Dan O’Brien.

Executive production by Mary Sanders and Naomi Wordley.

Two Russian men visit Salisbury just as the former spy Sergei Skripal and his daughter are poisoned with a nerve agent. They say they simply wanted to see the famous cathedral spire, but that’s not the view of the UK authorities who believe they came to kill. In this episode we learn more about the men, their movements and their real identities. Plus, we learn more about the Russian intelligence agencies from writer and historian Mark Galeotti.

This episode was made by Marie Lennon, Andy Howard, Tom Ryan & Dan O’Brien.

Executive production by Mary Sanders and Naomi Wordley.

Audio credit: JJ Extra, Salisbury Museum, ViaTravelers and British Pathe.

When Sergei and Yulia Skripal were poisoned with a nerve agent, police faced one of the most complex investigations in their history. They had to trace a weapon which they could neither see nor smell, but it could kill thousands. In this episode, we hear how they checked everything from coins to car keys in the hunt to find the source of the poisoning.

This episode was made by Marie Lennon, Andy Howard, Tom Ryan & Dan O’Brien.

Executive production by Mary Sanders and Naomi Wordley.

When Dawn Sturgess and Charlie Rowley were taken to hospital, the emergency services tried to piece together what had happened to them. We hear how they questioned whether it was a coincidence that they had treated two people for nerve agent poisoning four months earlier or whether the events could be connected. And we find out about Porton Down, the UK government’s secretive laboratory which identified the Novichok and speak to a former military officer who has been inside.

This episode was made by Marie Lennon, Andy Howard, Tom Ryan & Dan O’Brien.

Executive production by Mary Sanders and Naomi Wordley.

One of the first police officers to go inside Sergei and Yulia Skripal’s house after they were poisoned with a nerve agent was Detective Sergeant Nick Bailey. He then became critically ill himself, after touching the front door handle. It had been smeared with the deadly chemical. He relives the events of 2018, which would change his life forever.

This episode was made by Marie Lennon, Andy Howard, Tom Ryan & Dan O’Brien.

Executive production by Mary Sanders and Naomi Wordley.

When the former Russian spy Sergei Skripal and his daughter Yulia collapsed on a bench in Salisbury, it was Sunday shoppers who first stepped in to help. Amazingly, two of them were highly qualified medics. We hear their stories. Also, how the consultants at Salisbury District Hospital realised these were no ordinary patients.

This episode was made by Marie Lennon, Andy Howard, Tom Ryan & Dan O’Brien.

Executive production by Mary Sanders and Naomi Wordley.