Which is an example of criminal profiling?
1 Dusting a crime scene for fingerprints and collecting DNA samples from hair left at the scene
2 Analyzing a written ransom note for insight into details about the person who wrote it, such as an education level or political belief
3 Having a victim come to the police station to try to identify a culprit from a line-up of suspects
4 Obtaining a search warrant for a high school and searching lockers for drug evidence after a crime has taken place