After gaining a PhD in tree physiology, Dr Martin Dobson worked in Forest Research (part of the Forestry Commission) for nine years before joining the Arboricultural Advisory Service. He started his own practice as an arboricultural consultant in 1997 and since then has regularly been instructed as an expert witness. He was an examiner for the ABC/Royal Forestry Society (Level 6) Professional Diploma in Aboriculture for 16 years. This is the premier professional qualification in arboriculture. Martin is a Member of the Expert Witness Institute and is a Fellow and Registered Consultant of the Arboricultural Association. Martin has a wealth of experience in dealing with legal cases and has completed hundreds of expert witness reports and represented clients in the County Court, High Court, Lands Tribunal Upper Chamber and in mediations. With a background in research, Martin has many scientific publications to his name and in-depth knowledge of a wide range of arboricultural issues.