The International Association of Chiefs of Police and the U.S. Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF) have joined forces on a grant from the Bureau of Justice Assistance (BJA), U.S. Department of Justice, to study the impact of a collaborative project among the ATF, fusion centers, and local law enforcement to analyze firearms trace data along the northeast corridor of Interstate 95. This article highlights the work that carries forward the ATF’s commitment to improving the collection, the analysis, and use of firearms trace data in investigations.