Crime scene investigation
Crime scene investigation may refer to:

 Crime scene investigation, an important part of forensic science
 CSI: Crime Scene Investigation, a US television series (2000–2015)
 CSI: Crime Scene Investigation, a 2003 video game based on the TV show
 CSI (franchise), a US TV franchise, including CSI (2000–2015)
 Crime Scene Investigation Sanatan, a 2023 Indian Telugu-language film by Sivashankar Dev

See also 
 CSI (disambiguation)