Abstract

<jats:title>Abstract</jats:title><jats:p>There is an increasing role for the engineering geologist to act as an expert witness in matters involving planning, arbitration and litigation. The witness, whether of opinion or fact, has the duty to provide evidence clearly and honestly in assisting the hearing to come to balanced decision. Illustrative examples are drawn upon to highlight aspects of importance. The adversarial legal system in England and Wales provides a framework within which the principles, philosophy and adequacy of the work of engineering geologists can be challenged.</jats:p>