criminologists in protective suits with camera taking photos of physical evidence in a flashlight light - 鑑證學 個照片及圖片檔
criminologist in a protective suit against the barricade tape holds a physical evidence in a plastic bag - 鑑證學 個照片及圖片檔
serious male and female science professionals wearing lab coats in a modern laboratory use a microscope to analyse a petri dish. a team of scientists in the research field conducting experiments - 鑑證學 個照片及圖片檔
research, experiment and medical trial being done by a scientist in a lab, science facility or hospital. one young, serious and professional researcher organizing, sorting or making a discovery - 鑑證學 個照片及圖片檔
criminologist in protective suit, mask and gloves putts a gun in plastic bag at the crime scene only a gun is in focus - 鑑證學 個照片及圖片檔
