Difference Between a Homicide Detective and a Crime Scene Investigator (CSI)

well..you would think a Homicide Detective and a Crime scene investigator are the same person doing two different jobs, which is false, they both work together but do two whole different jobs at the scene of the crime, the detective tries to put things together to hopefully have their case on trail which the CSI people collect evidence at the scene of the crime, to help out the detective out with finding the killer that did the job but most of the time when working on the police force you have to watch out for corruption..from other people in the career field, the main course is Criminal Justice that they must have a background on. (got information on http://criminaljusticeonlineblog.com/01/difference-between-detective-and-crime-scene-investigator-csi/) (got image on http://cdn.newsday.com/polopoly_fs/1.1945831.1279024522!/httpImage/image.jpg_gen/derivatives/display_600/image.jpg)