The NAACP sued handgun manufacturers, distributors, and importers, claiming that their negligent sales and distribution practices had an effect on the use of guns in crime.

On behalf of the NAACP, NERA analyzed the number and source of handguns used in crime as well as the relationship between guns used in crime and the practices of manufacturers and dealers.

Judge Weinstein accepted the analysis presented by NERA, calling NERA's findings “robust, adequate, accurate, and reliable.”