Senior Consultant Geotechnical Consulting Group (GCG) Dr David Giles is a Senior Consultant at GCG with over 45 years’ of experience in academia and the Engineering Geology and Geotechnics industry. His experience includes 29 years lecturing and researching in Engineering Geology at the University of Portsmouth. Dr Giles is an active member of the Engineering Group of the Geological Society of London, a past Chair and an active member of Geological Society Working Parties including UK Geological Hazards, which he chairs and the Engineering Geology and Geomorphology of Glaciated and Periglaciated Terrains.