Title: The Role of the Criminal Investigator in Gathering Evidence and Building a Case for Prosecution

Criminal investigation is a process of gathering evidence of a crime. The ultimate goal of gathering evidence is to determine how the crime occurred, identify the perpetrator, and present the case for prosecution in a court of law.  
identify the specific goals and functions of the criminal investigator and tell how they work to determine how the crime occurred, identify the perpetrator, and present the case for prosecution in a court of law.