Over the last 20 years, the Courts and the legal community have increasingly relied on neuropsychologists to provide opinions, guidance, and expertise in the area of brain-behavior relationships. The purpose of this article is to review issues neuropsychologists commonly face when asked to evaluate cases with suspected mild traumatic brain injuries (TBI) in the civil or criminal legal context. In particular, we will discuss: (a) the neuropsychologist's role in TBI forensic cases, (b) the attorney's role in forensic TBI cases, (c) a neuropsychological framework to approach forensic mild TBI cases, (d) establishing working relationships with attorneys, (e) the Daubert and Frye standards, (f) symptom validity, (g) ethical issues, and (h) recommendations to improve the ecological validity of our tests and encourage test developers to provide alternate forms of tests.