Epic VS Silicon Knights: Fight over Access To Engine Code

"The latest battle began with a Silicon Knights protective order that sought to ensure Epic would not be allowed to view Too Human source code to judge how much, if any, Unreal Engine 3 code remained."

"While Epic sought to bring in three in-house employees to review the Too Human code, the court ruled against keeping the identity of two of those employees a confidential, and furthermore ruled that the one identified employee, Epic CEO Tim Sweeney, played a role in the case that did indeed constitute "competitive decision making."

Courtesy of Gamasutra