A crime scene was the location where a crime was committed. A summary of the conditions of a crime scene, called a crime scene report, was compiled after the area was examined. (DS9: "The Darkness and the Light")
For years, the story told about Joran Belar was that he was killed trying to escape the murder scene of the doctor that recommended dropping him as a Trill initiate. (DS9: "Equilibrium")
In 2367, Jean-Luc Picard referred to the T-Tauri system as the scene of the crime (i.e. where Data was believed to have been compromised) when ordering the USS Enterprise-D to return there. (TNG: "Clues")
In 2369, Odo noted that his being called to the scene of Ibudan's murder would explain why traces of his DNA were present. (DS9: "A Man Alone")
Also that year, Aquiel Uhnari's blood being found at Keith Rocha's murder scene led everyone to (falsely) assume she was dead, too. (TNG: "Aquiel")
In 2371, after initially examining Tolen Ren's murder scene, Tuvok expressed his interest in inviting everyone concerned back there in two hours. (VOY: "Ex Post Facto")
Later that year, Seska framed herself for her own crimes to point the finger at Joe Carey, making it appear that he was framing her. She did this by leaving evidence at the scene of the crime (inputting her own security code). (VOY: "State of Flux")