Gun supporters are celebrating the end of the state's combined ballistic identification system, an electronic database of spent shell casings.Created about a decade ago by then Gov. George Pataki, CoBIS required all new handguns sold in New York to be test fired, the casings collected and the marks on the spent shells digitized and stored in the database. The idea was that investigators would be able to connect the marks on the shells in the database with guns used in crimes.But the system never lived up to its promise. Since 2011, there have only been two identifying "hits," despite hundreds of thousands of markings being entered into the database.

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