After more than four years, more than three hundred thousand documents, four hundred days of testimony and around £150 million, the Inquiry heard its final evidence.

Lawyers for the core participants put forward the arguments they think the chair of the Inquiry, Sir Martin Moore-Bick, should consider as he produces his final report.

Lead Counsel Richard Millett said all the deaths at Grenfell Tower were avoidable and strongly criticised companies and organisations involved in the refurbishment for failing to take responsibility.

And Paulos Tekle, a Tower resident, whose five-year-old son lost his life on the night of the fire, tells us what he expects from the final report.

Presenter: Kate Lamble

Producers: Sharon Hemans and Luke Radcliff

Researcher: Marcia Veiga

Sound Engineer: Gareth Jones

Editor: Hugh Levinson

"I can’t undo the past, but I wanted to be a part of making things better” While the Inquiry has paused hearing evidence, Kate Lamble spoke in depth to Nick Hurd, a former Minister for Policing and the Fire Service and now the government’s independent advisor on Grenfell. She asked about his experiences while in government immediately after the fire and discussed what the future holds for the tower itself and how to memorialise the site. Presenter: Kate Lamble Producers: Sharon Hemans and Kristiina Cooper Researcher: Marcia Veiga Studio Mix: Gareth Jones Editor: Hugh Levinson

Toxicologist Professor David Purser told the Inquiry that the rapid spread of smoke was the principal cause of death, and that burning cladding panels and insulation were the main source of this poisonous smoke. The Inquiry also heard closing statements for Module 4, covering the immediate aftermath of the fire. From next week it will turn into an inquest, so for this reason the podcast will not be covering those hearings. The podcast will return when the Inquiry produces its final report for the government. Presenter: Kate Lamble Producers: Sharon Hemans and Kristiina Cooper Researcher: Marcia Veiga Sound Engineer: Gareth Jones Editor: Hugh Levinson

This week the inquiry heard closing statements for Module 6, outlining how combustible materials came to be tested, certified and regulated and ended up being installed on the outside walls of Grenfell Tower. Lawyers representing the Bereaved, Survivors and Residents said the Inquiry had exposed fault-lines in the “edifice of government” and another said the “seeds of the Grenfell Tower fire were sown 20 years earlier”. There was criticism of manufacturers, regulators, building control bodies and of the government, with barristers accusing a “cabal of ministers” of being “enslaved to the deregulatory agenda”. Presenter: Kate Lamble Producers: Sharon Hemans and Kristiina Cooper Researcher: Marcia Veiga Sound Engineer: Gareth Jones Editor: Hugh Levinson

This week, as we passed the fifth anniversary of the Grenfell Tower fire, two expert witnesses levelled a series of fierce criticisms at the building safety regime. José Torero, head of the civil engineering department at a London university, described the competence levels among fire safety professionals as “extremely poor” and called for the Stay Put strategy to be abandoned. And Luke Bisby, professor of fire and structures at Edinburgh University, told the Inquiry, that he was “incredulous” at the misuse of fire tests by a cladding firm, and said there was a “significant problem” with the level of competence of fire safety professionals. Presenter: Kate Lamble Producers: Sharon Hemans and Kristiina Cooper Researcher: Marcia Veiga Sound Engineer: Gareth Jones Editor: Hugh Levinson

This week, the Inquiry moved on from examining the aftermath of the fire and began hearing evidence from a series of experts in fire engineering. Luke Bisby, professor of fire and structures at Edinburgh University, described the results of a test on the cladding panels and insulation installed on the tower as the “most shocking experiment” he had ever seen. Barbara Lane, a fire safety expert, told the Inquiry that the culture inside the Building Control sector was of “worrying standards”. And Ivan Stoianov, an expert in water distribution systems, said that the quantity of water available for firefighters at Grenfell was “more than adequate.” Presenter: Sharon Hemans Producers: Kristiina Cooper Researcher: Marcia Veiga Sound Engineer: Gareth Jones Editor: Hugh Levinson

This week, the Inquiry heard about the confusion, lack of grip and poor communication within Whitehall, as ministers and civil servants dealt with the aftermath of the fire. Nick Hurd was given the initial responsibility for leading the government’s response, despite being only two days into his ministerial position at the time of the Grenfell fire. He described the government’s actions as “wholly inadequate”. A senior civil servant described the local authority's response to residential complaints about housing as a “sign of defensiveness” and the Mayor of London’s chief of staff said that Grenfell residents were “failed by us as a society”. Presenter: Kate Lamble Producers: Sharon Hemans and Kristiina Cooper Researcher: Marcia Veiga Sound Engineer: Gareth Jones Editor: Hugh Levinson

This week, the Inquiry examined how central government responded to the aftermath of the disaster while continuing to hear about London-wide emergency response arrangements. The Chief Executive of the Royal Borough of Kensington and Chelsea took two days to ask for emergency help from other London councils, after being “leant on”. An email written by then Prime Minister Theresa May contained damning criticism of RBKC’s response, describing their actions as “utter uselessness”. The British Red Cross said there was confusion over responsibilities between them and the council. Meanwhile this week the government announced that it was rejecting two of the recommendations made by the Inquiry back in 2019. Presenter: Kate Lamble Producers: Sharon Hemans and Kristiina Cooper Researcher: Marcia Veiga Sound Engineer: Gareth Jones Editor: Hugh Levinson

This week, the Inquiry continued to investigate the events immediately after the fire by digging deeper into what happened at local rest centres which were opened to support survivors. An official who volunteered to help with the relief effort described the scene at the largest centre as a shambles, with chaotic scenes, an intimidating armed police presence and a lack of organisation. The authorities tried to send some residents from the walkway flats next to the tower back to their homes, despite them having broken front doors and lacking gas or communal heating. And we heard that at the time of the Grenfell disaster that tower block fires were not included in the official London Risk Register – even though it did mention wildfires and moorland fires. Presenter: Kate Lamble Producers: Sharon Hemans and Kristiina Cooper Researcher: Marcia Veiga Sound Engineer: Gareth Jones Editor: Hugh Levinson

This week we heard different views from senior managers as to how the Royal Borough of Kensington and Chelsea coped in the aftermath of the Grenfell Tower fire. We discovered that the chief executive initially rejected offers of support because he had “great confidence” in the council. And the inquiry heard reports that - on the night after the fire - some residents who had been evacuated from nearby buildings ended up sleeping in their cars or in parks because the council failed to inform them about alternative accommodation. Presenter: Kate Lamble Producers: Sharon Hemans and Kristiina Cooper Researcher: Marcia Veiga Sound Engineer: Gareth Jones Editor: Nicola Addyman

The Inquiry continued to hear evidence about the immediate aftermath of the fire. Rebecca Blackburn, a former Contingency Planning Officer for the Royal Borough of Kensington and Chelsea, described scenes inside the town hall as “pandemonium”. Her boss told the inquiry he regrets that he didn’t speak up about weaknesses in the council’s emergency plans and accepted he was too late in making some decisions about the response to the disaster. Survivors and relatives described chaotic scenes trying to find information about their loved ones and callousness in their treatment by the council. Presenter: Kate Lamble Producers: Sharon Hemans and Kristiina Cooper Researcher: Marcia Veiga Sound Engineer: Gareth Jones Editor: Hugh Levinson