The epidemiologist as an expert in litigation

Abstract

In litigation involving toxic torts and environmental law, a causal connection between the damages and the alleged exposure must be established or disproved. Typically, expert evidence is necessary to prevail. Epidemiologists are uniquely suited to serve as experts in these types of cases, as they study ways to ascertain and control the causes of disease, trauma, or other health conditions. Epidemiological testimony can play a role in several legal contexts, but the utilization of epidemiology to prove, or disprove, a casual connection between an exposure and a disease or injury can result in litigation that is both complex and controversial. This chapter provides an overview of different aspects of the litigation process, the roles of experts in the litigation, and the obligations and duties of such experts, with a focus on the laws of the United States and brief references to the processes utilized in various other countries.