I found this interesting article about how prosecutors are using SketchUp and Google Earth in courtroom trials. These applications can be used to recreate a crime scene, and jurors can be walked through the events. The picture below is from the article - if you look closely you can see SketchUp models on both monitors.
SketchUp has been used for years in the film and stage industry, in set designs and storyboarding. Reenacting a crime is just an extension of this. Very cool.
Anyone can design anything in 3D! www.3dvinci.net