Hainan Medical University, Hainan Provincial Academician Workstation (tropical forensic medicine) 1 article published in JoVE Medicine Extraction of Diatom DNA from Water Samples and Tissues Yun-chao Zhou*1, Bo Wang*1, Jie Cai2, Yu-zhao Xu1, Xiao-shi Qin1, Shan Ha1, Bin Cong1,3, Jian-hua Chen1, Jian-qiang Deng1 1Hainan Province Tropical Forensic Engineering Research Center, Department of Forensic Medicine, Hainan Medical University, Hainan Provincial Academician Workstation (tropical forensic medicine), 2Hainan Vocational College of Political Science and Law, 3Department of Forensic Medicine, Hebei Medical University This article describes a protocol for diatom DNA extraction using a modified common DNA extraction kit.