CSI, or Crime Scene Investigation, is a scientific method used to gather and analyze evidence from crime scenes. It involves a team of professionals, including forensic scientists, crime scene investigators, and law enforcement officers, who work together to collect physical evidence such as fingerprints, DNA, and other trace materials. This evidence helps to reconstruct events and identify suspects. The process of CSI includes securing the crime scene, documenting the area, and collecting samples for analysis. Techniques such as fingerprinting, ballistics, and toxicology are commonly employed to provide insights into the crime. The findings from these investigations can be crucial in solving cases and bringing justice.