David Greig is an intuitive and adaptive civil engineer, claims specialist, delay analyst, and testified Expert Witness with over 25 years of global construction experience across Europe, Asia, and the Middle East. He has been instructed as an Expert Witness in planning and delay analysis under UK and international rules, and has worked on over 60 major infrastructure, building, and oil & gas projects. He also provides training, mentoring, and has authored numerous papers on construction planning and delay analysis.