It happened on 10/13/2007 at 9:15 pm on Channel 5 KPIX San Francisco during CSI Miami – “Death Pool 100” (2006).
A gun was traced to its owner by reading the firing pin marks on a .380 shell casing and comparing them to a database. The close-up showed what appeared to be a “V” on the shell casing that was matched. This is a total distortion of the present capabilities of microstamping technology. The scene was shown at about 9:15.
It is interesting that this is shown again in California on the eve of the last day that Governor Schwarzenegger can veto AB 1471 (microstamping) before it becomes law.