Law Bars a National System for Tracing Bullets and Shells
The technology exists to create a national ballistic fingerprint system that would enable law enforcement officials to trace bullets recovered from shootings, like those fired by the Washington-area sniper, to a suspect.

Such a system would have been of great use in the Washington case, in which six people were shot to death, because so far bullet fragments are virtually the only evidence.

But because of opposition by the gun industry and the National Rifle Association, only two states have moved to set up a ballistic fingerprint system, and Congress has prohibited a national program, experts say.

"I definitely think that the technology is there, and it has been refined to the point where it is cost effective," said Joe Vince, a former chief of the crime guns analysis branch of the Bureau of Alcohol, Tobacco and Firearms.

"It would not be an imposition on the manufacturers or law enforcement or citizens, so I'm all for it," said Mr. Vince, who is now president of Crime Gun Solutions, a consulting company in Frederick, Md.

Now, the police can tell only whether bullet fragments or shell casings found at a crime scene match one another and come from the same gun. This information helps establish whether only one weapon was involved.

But without the gun itself, the police cannot go the next step and use this information to try to trace the shooter.

Even the technology that enables the firearms bureau to match bullet fragments or shell casings to one gun is new. A system was installed in 1999 after encouragement by the Clinton administration, Mr. Vince and other experts said.

This system, known as the National Integrated Ballistics Information Network, optically scans the markings on bullets or shell casings, converting them into an electronic signature. This information is stored in a database and can be retrieved by computers in 235 police departments around the nation.

Gun control advocates and some law enforcement authorities like Mr. Vince have long advocated taking the next step, requiring gun manufacturers to keep an electronic record of the markings from bullets and shell casings when new guns are test fired. This data would be kept with the serial numbers of the guns.

With this information, the agency would be able to trace bullets and shell casings found at a shooting site to the gun maker and eventually to the buyer, said Mr. Vince and another former high ranking firearms bureau official.

But the National Rifle Association has opposed this, calling it tantamount to a national gun registry. The group succeeded in getting a provision in the 1968 federal Gun Control Act outlawing any national gun registry.
http://www.nytimes.com/2002/10/07/national/07GUNS.html