Douglas Rohde earned his master of science degree in 1992. As supervisor of chemistry and toxicology at the Lake County Crime Laboratory for 19 years, Doug has provided expert courtroom testimony and investigated numerous forensic cases. He identified the poison used in a high-profile murder as well as the chemical used to poison a barking dog. He performed the initial toxicology on a drugged and kidnapped victim who escaped a serial killer. And he identified a new opioid after examining its first victim.