This week the Inquiry questioned representatives from both the National House Building Council and Local Authority Building Control about the steps they took to restrict or approve the use of combustible materials in the years before the Grenfell Tower fire. Steve Evans, an NHBC manager, was warned at a conference 18 months before the Grenfell fire about the dangers of the combustible cladding which would eventually be installed on the tower. The former Technical Sales Director of the LABC, David Ewing, told the inquiry the company was gamed and played by insulation manufacturers.

Presenter: Kate LambleProducers: Sharon Hemans and Nathan GowerResearcher: Ben Henderson Studio Mix: Gareth Jones Editor: Hugh Levinson