This two-part study of the criminal investigation process first evaluated the frequency with which patrol officers solve cases assigned to the investigations division and then examined how detectives spent their time, both on case assignments and on other activity not related to current case assignment. Cases assigned to the investigations division for follow up were examined to determine how often a case was cleared by the patrol officer. The detective's time was then evaluated in order to determine how much time detectives spent on investigative tasks and other activities. This study confirms that the patrol officer should be given more time to conduct preliminary investigations for specific cases, and that tasks performed by detectives could be shifted to other personnel in the department. Both actions should serve to positively impact case clearance rates.