Jennifer J. Harman, PhD. has served as an expert subject matter witness on numerous civil and criminal cases across the U.S. Her role has primarily been as a "blind-to-the-case" subject matter expert witness who can educate the court about research on parental alienation and other forms of family violence.

Dr. Harman is not a clinician or custody evaluator. She is a scientist. She has never conducted clinical assessments of parental alienation for clients, nor has she ever made any determination that parental alienation has happened in a family or made recommendations to the court (despite what has been portrayed in the press and social media). While she does not currently serve as a "blind to the case" expert witness on cases, Dr. Harman is available to consult with legal and mental health professionals.