In case of marriage failure, most couples nowadays prefer divorce or annulment. For them, separation is much easier than forcing a relationship to work. However, the consequences of divorce seem to have a greater impact on the children and not just on the couple. Child custody is usually brought into court agreements to determine which party, the mother's or the father's, qualifies for custody. In this regard, lawyers require the help of mental health experts who will carry out evaluations of both parties. Mental health experts also provide counseling that would help people deal with the condition they are experiencing. In this way, the psychologist would have a dual role: a forensic evaluator and a therapeutic consultant. This dual task would be at the heart of this discussion. In 1997, Greenberg and Shuman wrote an article showing the irreconcilable conflict between the dual roles of mental health experts in judicial proceedings. Several factors have allowed mental health experts to appear as forensic expert witnesses. However, these two roles are not compatible due to the many differences between them, and confidentiality and anonymity are compromised. You must first provide definitions to distinguish between roles. Therapist refers to a doctor or mental health expert who provides psychotherapy to the client. His main responsibility is to treat his patient. A witness of fact means the person who testifies on the basis of direct observations. It does not offer expert opinions. In short, a therapist who serves as a fact witness is someone who testifies based on observations made during therapy. His conclusions are then drawn from his observations (Strasburger, Gutheil, &...... half of the paper ......ings as a therapist and forensic expert. This is due to the premise that assuming the roles of both therapist and a forensic expert can lead to the possibility that the expert is more concerned with the conclusion of the case than with the integrity and accuracy of his testimony. Furthermore, there are many differences between the roles of the therapist and the expert include the attitudes of each expert, the goals and roles of therapist-patient and forensic expert-patient relationships. These differences lead to the incompatibility of dual roles. Furthermore, confidentiality and anonymity are compromised when therapists provide testimony in court proceedings believe that dual roles may be compatible, the points discussed in this article are sufficiently adequate to conclude that the therapeutic and forensic roles are incompatible.