"The race of drug offenders varied even more widely by the type of drug involved in the offense. More than 45 percent (46.2%) of all drug offenders convicted in federal court were Hispanic, while Black offenders comprised 25.9 percent of all drug offenders and White offenders 25.3 percent of all drug offenders. Yet, in crack cocaine cases, 82.6 percent of those convicted were Black, and in methamphetamine cases 48.1 percent of the offenders were White."

Source

US Sentencing Commission, "FY 2012 Overview of Federal Criminal Cases" (Washington, DC: USSC, July 2013), p. 7.
http://www.ussc.gov/Research_…
http://www.ussc.gov/Research_…