Fresno DUI and Criminal Defense Attorney Jonathan Rooker has made a career out of using science to defend criminal cases. Most cases, especially toxicology based crimes like DUI, drug identfiication, tool marks, finger prints, cell phone data extraction and many others require forensic science. Jonathan is completing a M.S. Forensic Science to go with his M.S. in Forensic Toxicology degree. His knowlege can help you with your case.