Just read a bunch of info on this - alot by the guy Lizotte, who invented it (and who now owns ID Dynamics)...Supposedly on the firing pin, which is "nearly as hard as a diamond", can't be easily sanded off, invisible to the naked eye, etc. Say "criminals sprinkling the crime scene with 'fake' shells" s silly - they don't do it now", .25 to .50 cents royalty per gun (but how much for the gun companies and buyers?).
Seems swapping the firing pin would be simple - but THAT would be come illegal if it held the make model & serial number.
http://www.answers.com/topic/firearm-microstamping
and
http://www.contracostatimes.com/mld...94934.htm?source=rss&channel=cctimes_politics
California could become the first state in the nation to require semi-automatic handguns include microscopic equipment for pressing an identifying mark into every bullet fired.
Through newly developed technology, the firing pin of a semi-automatic weapon can stamp the gun's make and model onto a bullet shell as it leaves the chamber. The technology could help police investigate homicides and trace gun trafficking.
Thirty-three California police chiefs and two county sheriffs support a bill, sponsored by Assemblyman Paul Koretz, D-West Hollywood, that would require the markers.
"It has the potential to solve some significant crimes in some pretty large numbers," Koretz said in a telephone interview.
Officers could quickly match the casing numbers to weapons on a state gun sales database maintained by the California Department of Justice.
It's the second go-round for the bill, which passed the Assembly easily last year but was defeated in the Senate. This year, the votes are there, Koretz said.
...
Sam Paredes, director of the 30,000-member California Gun Owners Association, said proponents of the bill are engaging in "a lot of wishful thinking" if they believe mandating the technology will turn that around.
"All it takes is a few swipes (on the pin) with a sandpaper or nail file, and (the marker) is gone," he said.
He called the technology "laughable," saying trigger-happy criminals could outwit police investigators by picking up spent shells at a shooting range and sprinkling them at a crime scene.
That drew a big laugh from Todd Lizotte, who developed the technology for use in laser printers while he was vice president of NanoVia, a semiconductor and microelectronic equipment manufacturer bought by Hitachi in 2003.
There's nothing stopping perpetrators of gun violence from doing that now, he said.
"The truth is, nobody ever does that," he said. "When people talk about these issues, they tend to raise the common criminal up to the level of criminal mastermind and the police down to the level of (cartoon character) Wile E. Coyote."
The pin is nearly as hard as a diamond, he said. In addition, the markers on the pin are invisible to the naked eye.
The technology expands on the incidental markings that already appear on cartridge casings, Lizotte said. "Instead of relying on randomly created marks, we're placing an identifier specific to that firearm."
Hitachi acquired NanoVia, but not its ballistic imaging component. That went to ID Dynamics, a holding company founded by Lizotte and his partners.
An Assembly revote is being held up while Koretz and Assemblyman Jay La Suer, R-San Diego, the bill's chief critic, agree on a date for a demonstration.
"I told him if they're able to file (the pin) down, I'll halt the bill," Koretz said. "My understanding of the technology is that it's pretty foolproof."