CNN CNN Newsroom July 3, 2013 15:35:00
You if you recognize that? >> i do. >> how do you recognize that? >> the daily case number, the exhibit number and my initials. >> and what what do you recognize it to be? >> it is one fired 9 millimetre lugger cartridge case. >> when you receive a firearm in a fire casing, are you able to determine whether or not that particular casing came from that particular firearm? >> yes. >> how can you do that? >> with a submitted firearm and magazine that i will use laboratory and/or evidence ammunition to test fire that pistol. i will then collect the fired cartridge cases and compare those microscop...
Source: archive.org