The current definition of child-to-parent abuse (CPA) includes different forms of abuse (physical, emotional, psychological and financial) toward one parent, the perpetrator's awareness of such violent behavior and repeated perpetration, excluding isolated acts of violence (Pereira et al., 2017). CPA has received growing social, clinical and scientific interest during the last decade due to the increase of complaints filed by parents, according to the General Prosecutor's Office of Spain (Fiscalía General del Estado, 2019). However, the number of cases in which parents do not report their children's behavior to the Juvenile Court remains unknown. In their review of community sample prevalence data, Simmons, McEwan, Purcell and Ogloff (2018) estimated the 12-month incidence of adolescent-perpetrated physical CPA to be between 5% and 21%. These data reflect the magnitude of this social problem.Clinical practice experiences of practitioners in child and adolescent mental health suggest that CPA is increasing (Coogan, 2014; Hong, Kral, Espelage, & Allen-Meares, 2012). Currently, practitioners from different fields are constantly seeking help regarding adolescents or young people who have been expelled from school, who have problems with the law and act violently toward their parents. Research suggests that CPA tends to begin with verbal aggression before escalating to other forms (Cottrell, 2001) and can increase in both frequency and intensity without intervention (Bachli, 2008). Thus, families that experience this type of situation require immediate intervention to reduce family conflict and discomfort. Moreover, parents talk with embarrassment and fear about their experiences of victimization by their children (Coogan, 2014). Taking the judicial path is a resource more of support for dealing with serious cases of CPA. The appearance of behavior problems in childhood and Izaskun Ibabe, Ainara Arnoso, Edurne Elgorriaga & Nagore Asla (2023) Evaluation report of early intervention program in situation of child-to-parent abuse: parents and children as participants,