Banks and other large financial institutions are not immune from federal prosecution because of the potential collateral consequences to the economy, a top U.S. Department of Justice official testified Wednesday on Capitol Hill.

"Size does not equal immunity," Mythili Raman, the acting assistant attorney general of the criminal division, told the House Financial Services Committee. While the Justice Department considers the possible economic impact of filing criminal charges against a bank, Raman said, "It’s never the dispositive factor."