Dr David Crowder is a partner at DCCH Experts LLP, a firm specialised in the provision of expert fire safety advice in relation to fire incident investigation, building defects and challenging engineering problems. He has extensive experience in the field of fire safety, having been involved in a wide range of large-scale experimental work, testing, inspections and fire investigations, particularly with respect to new developments in the built environment. He specialises in investigating fire development, the performance of fire protection measures and systems during real fire incidents, and the regulatory aspects of performance in these areas. He is a Chartered Engineer registered with the Engineering Council by the Institution of Fire Engineers and holds a PhD in the impact of fire chemistry in fatal fires, examined via the investigation, reconstruction and hazard analysis of real fires. Major fire investigations he has worked on include the Atherstone on Stour warehouse fire, Royal Marsden Hospital, the Cutty Sark, Lakanal House and the Grenfell Tower fire. He is one of the authors of the Code of Practice for Investigators of Fire and Explosions for the Criminal Justice Systems in the UK, as well as being one of the technical authors of PAS 9980, the Code of Practice for Fire risk appraisal of external wall construction and cladding of existing blocks of flats. (Source: AFAC23)