Pathologists play a vital role in toxicology by examining tissue samples to identify pathological changes caused by toxicants. They use various techniques such as microscopy, biochemical assays, and molecular methods to assess the extent and nature of tissue damage. Their findings are crucial for diagnosing poisoning cases, evaluating the safety of new drugs and chemicals, and conducting toxicological research. Pathologists also contribute to developing treatment strategies and preventive measures against toxic exposures.