Determining when the equal culpability thesis holds sets the boundaries in which the willful ignorance doctrine is to be applied. Chapter 3 thus considers the best existing attempts to specify the conditions in which the equal culpability thesis holds, but proceeds to argue that none succeeds. Still, each failure is instructive. First, the chapter argues against the unrestricted equal culpability thesis. Not all willful ignorance, it turns out, is as culpable as the analogous knowing misconduct. Then the chapter argues against the three leading attempts to restrict the thesis. Section II argues against a restriction that appeals to bad motives, while Section III argues against a common counterfactual restriction (according to which willful ignorance is as culpable as knowing misconduct when one would do the actus reus even with knowledge). The latter proposal fails since criminal culpability does not depend on considerations about counterfactual conduct or one’s willingness to misbehave. Finally, Section IV discusses a third restriction, offered by Deborah Hellman, which asks whether the decision to remain in ignorance was itself justified. This version of the thesis is on the right track, but still requires refinement in important ways.