Second Circuit: District Courts Must Follow The 100:1 Crack/Powder Ratio

United States v. Castillo, Docket No. 05-3454-cr (2d Cir. Aug. 16, 2006) (found here)

The bottom line?  "We hold that district courts do not have the authority to reject unilaterally the 100:1 ratio on policy grounds, and we remand for further proceedings."

Doug Berman's Sentencing Law and Policy blog has discussions of Castillo here and here.