Crime Scene Animations For Use w/ Forensics?

Sleen asks: "How common is it to have access to a forensic animator as part of criminal investigation? Drawing likenesses is cool, but what if the event is complex and involves multiple parties? A witness may have a difficult time communicating the circumstances for a linear dialog description of a crime. An animation of the circumstances may be a better vehicle for information bulletins for the investigation. NASA does a very good job of animating in CAD and so forth all the concepts, and its probably expected when submitting grant proposals. Has this technology trickled into criminal investigation?" with all of the computer use in forensic analysis today, I can't see this being a real help except when trying to explain the circumstances behind a crime to those not familiar with intricacies of criminal-investigation. Might something like this proove better off in the courts as a visual aid for the Jury? Would something like this improve how Crime Scenes are investigated?