The Firearm Section performs analyses in several areas of comparison. The examiners can identify the firearms used during a crime by microscopically comparing crime scene bullets with known test-fired bullets.
Serial numbers which have been damaged can be restored using chemicals. Thus stolen firearms can be traced to their owners.
This section also maintains an open case file that contains cartridge casings from unsolved homicides and serious felonious assaults for comparison with weapons submitted by police agencies.