Abstract: On May 8, 1989, four police officers, Employees #1, #2, #3, and #4 performing police response duties entered a chemical hot zone containing opened and scattered containers of hazardous chemical waste substances after a truck wrecked off of Interstate 85. Employees #1, #2, #3, and #4 had delayed illnesses and were later observed at a hospital. Employees #1, #2, #3, and #4 were examined on the suspicion of methylene chloride in their bloodstream. Two employees had elevated levels of carbon monoxide in their bloodstream. Employees #1, #2, #3, and #4 suffered nausea, flushed face with some mucous discharges of blood. One employee felt like his skin was covered with fiberglass. The delay in system poisoning was typical for methylene chloride.