DH, a graduate anthropologist with over 20 years’ experience in applied health research, is Professor of Evaluation at The University of Sheffield. He has >150 peer-reviewed publications, 8672 citations, a h-index of 43, and >£25m in research grants. He is also an NIHR Research Support Service advisor and Assistant Director of Sheffield Trials Unit since 2009, securing vital infrastructure for 60+ staff with £2.5m annual turnover. He has published over 40 systematic and scoping reviews, including for NICE and the Cochrane Collaboration. His work is cited in 692 policy/practice guidelines worldwide, including 43 NICE guidelines. His collaborative quality improvement work for NHS England resulted in the adoption of two national indicators. His patient-led, equity-focused, Health Foundation-funded AWARE-IBD project received a 2024 British Society of Gastroenterology Service Improvement Award. He currently serves on the NIHR HTA Clinical Evaluation and Trials committee (2019-2024) as an expert in randomised controlled trials, mixed-methods research and evidence synthesis. His latest collaboration is Delivering Effective Non-Invasive ventilation in Motor neuron disease using intensive remote support (DENIM - NIHR158715) a multi-centre, stepped wedge cluster, Hybrid Type 3 Implementation-Effectiveness trial evaluating an implementation package designed to improve the quality of non-Invasive ventilation delivery.