In October 2018, David Roberson, previously the company's vice-president of government affairs, was sentenced to "two-and-a-half years in prison, followed by one year of supervised release", and fined $25,000 for his July 2018 convictions, alongside those of attorney Joel Iverson Gilbert (formerly, a partner active in Balch & Bingham's Environmental and Natural Resources section), on "six criminal charges each relating to a scheme intended to stop expansion of a toxic cleanup site in Jefferson County by the Environmental Protection Agency", through a bribe to former basketball player, then state legislator Oliver Robinson (who was also convicted), through use of his nonprofit organization, The Oliver Robinson Foundation. Roberson maintained that he "trusted Joel" and "never thought we were bribing Oliver Robinson."