Crime scene investigations involve the systematic examination of a location where a crime has occurred. Investigators collect evidence such as fingerprints, DNA, and other physical materials to help reconstruct the events of the crime. This process is crucial for identifying suspects and understanding how the crime took place. The investigation typically begins with securing the scene to prevent contamination. Forensic scientists and law enforcement officers work together to document the scene through photographs and sketches. They also interview witnesses and gather information that may lead to solving the case. Proper procedures ensure that evidence is admissible in court.