The role of the expert witness is to act as a teacher, providing an educational bridge between the Justice System and the technical world. As the volume of litigation in this country increases, and the issues at hand in court cases become more and more complex, experienced expert witnesses who can convey the technical information to the judge and jury are in higher and higher demand. Municipal, county and state Flood Control Agencies and Public Works Departments are involved in flood related litigation all the time and are their engineers and administrators are frequently called on to testify.