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.

Who is Sergei Skripal? The former Russian spy was poisoned by Novichok in March 2018, but until now very little has been known about him, his life in England, and his mysterious past.

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

Executive production by Mary Sanders and Naomi Wordley.

An in-depth interview with the Head of Counter Terror Policing at the time of the poisonings, Neil Basu. He relives how dangerous the investigation was for the officers involved, what it took to find the suspects, and 6 years on, how he feels about Dawn Sturgess’ death.

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

Executive production by Mary Sanders and Naomi Wordley.

Andrea Sella, Professor of Inorganic Chemistry at University College London, answers the big questions about Novichok. The deadly nerve agent killed Dawn Sturgess and poisoned many more in Salisbury and Amesbury in 2018. What is it, when was it developed, and what does it do to our bodies?

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

Executive production by Mary Sanders and Naomi Wordley.

As the inquiry prepares to move from Salisbury to London, Andy Howard and Marie Lennon review a momentous week of evidence, which saw the emergency services interrogated and the communication between them questioned.

Dawn's family ask for President Putin to appear at the inquiry in person to answer questions about her death and the Russian Ambassador to the UK gives his response.

Focus turns to the protection given to Sergei Skripal; should he have been living in the UK under his own name without surveillance?

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

Executive production by Mary Sanders and Naomi Wordley.

Paramedics and police relive the moments they were called to Charlie Rowley's flat in Amesbury. First Dawn Sturgess is found unresponsive, and then several hours later Charlie falls ill too. The emergency services disagree about what has caused him to be so unwell. The Inquiry investigates whether Dawn could have survived if the initial treatment had been different.

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

Executive production by Mary Sanders and Naomi Wordley.

Caroline, Dawn’s mother, speaks publicly for the first time about her daughter and sets the record straight about who Dawn was. The police apologise to her family for the way she was portrayed, plus we hear evidence from the only person who saw what happened to Dawn on the day she was poisoned, her boyfriend Charlie Rowley.

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

Executive production by Mary Sanders and Naomi Wordley.

Marie Lennon and Andy Howard reflect on an extraordinary first day at the Dawn Sturgess Inquiry.

We hear that there was enough nerve agent hidden in a perfume bottle to kill thousands. Dawn is described as an “innocent victim, caught in the crossfire of an illegal and outrageous assassination attempt.”

As the finger is pointed at Putin, Dawn’s family call on the Russian president to give evidence and look them in the eye.

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

Executive production by Mary Sanders and Naomi Wordley.

Theresa May, who was prime minister at the time of the attack, recalls when she first heard about the Salisbury poisonings.

Baroness May describes how it felt to stand in the House of Commons and blame the Russian state for the attack, the moment she heard that a British citizen had been killed and shares her hopes for the Dawn Sturgess Inquiry.

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

Executive production by Mary Sanders and Naomi Wordley.