In the United States Court of Appeals for the Tenth Circuit, Colorado Outfitters Association, et al., plaintiffs-appellants, v. John W. Hickenlooper, Governor of the state of Colorado, defendant-appellee, Congress of Racial Equality, et al., amici curiae ; Jim Beicker, Sheriff of Fremont County, et al., plaintiffs-appellants, v. John W. Hickenlooper, Governor of the state of Colorado, defendant-appellee, Congress of Racial Equality, et al., amici curiae : on appeal from the United States District Court for the District of Colorado-Denver, Honorable Marcia S. Krieger, D.C. no. 1082-1 : brief for amici curiae Law Center to Prevent Gun Violence /

The question presented is whether a Colorado state statute prohibiting the sale of large capacity ammunition magazines and requiring background checks on private gun transfers is unconstitutional under the Second Amendment to the U.S. Constitution.