SIOUX FALLS, S.D.--(BUSINESS WIRE)--National law firm Robins Kaplan LLP announced today the filing of a motion in the United States District Court for the District of South Dakota, seeking to lift an 11-year-old injunction that prevents Oglala Sioux Tribe industrial hemp farmer Alex White Plume from exploring the legal farming of industrial hemp. White Plume’s farm is on the Pine Ridge Indian Reservation, and therefore subject to the Oglala Sioux Tribe Ordinances and the 2014 Farm Bill, both of