 In Texas, July 2007, Rhonda Crain ("Sony v. Crain") sought leave to add a counterclaim against the RIAA for knowingly engaging in "one or more overt acts of unlawful private investigation" in the RIAA case against Crain.In one file-sharing case, the RIAA has been referred by the defendants as "a cartel acting collusively in violation of the antitrust laws and of public policy, by tying their copyrights to each other, collusively litigating and settling all cases together, and by entering into an unlawful agreement among themselves to prosecute and to dispose of all cases in accordance with a uniform agreement, and through common lawyers, thus overreaching the bounds and scope of whatever copyrights they might have".In "Arista v. Limewire" this was as well alleged by the defendants and referred to in the defendants counterclaim.