When a detective member is summoned to a crime scene or is provided a case file for a follow-up investigation from uniformed patrol, it is important to remember the ultimate objective of a criminal investigation is to present to a court of law both the suspect and convincing physical evidence. The facts that are obtained and the evidence that is uncovered and protected are all instrumental in directing the investigation to a successful conclusion. Certain responsibilities fall upon the detectives of the department to ensure a proper conclusion of the criminal investigation.