JOHN MULLEN is a chartered quantity surveyor and civil engineering surveyor, with 40 years' experience in the construction and engineering industries. John was one of the founders of Driver Group PLC, creating many of its businesses, and has been its individual largest shareholder and UK and Middle East Managing Director. He has an international reputation as a quantum expert witness in litigation and arbitration around the world, on matters up to US$2.25 billion in dispute.

R. PETER DAVISON was one of the founders of Driver Group PLC and is former head of its expert witness business, DIALES. Peter originally trained as a quantity surveyor and is a former Chartered Quantity Surveyor and Chartered Arbitrator, who established a reputation as an objective, experienced and reliable expert witness on quantum matters. Less