The discussion focuses on sexual abuse involving father/stepfather and daughter as well as father/stepfather and son. Case management is considered by examining how professional intervention modes become linked to the family system and how this intervention changes the family dynamics. Therapeutic intervention requires legal procedures for dealing with child abuse in general and a consideration of how legal and professional services could be more effectively organized to respond to reported cases of child sexual abuse. The general plan of case management presented ensures a therapeutic orientation toward dealing with the family; suggestions detail how to integrate police, legal, child care, and protection efforts in a therapeutic approach. Detailed planning at each phase of the intervention is described. Treatment methods used by various agencies across the country are examined. Prevention approaches describe sex education in schools and at home, and instruction for children in the difference between appropriate and inappropriate touching. The long-term harmful effects on the victims of incest are described, and resources for helping the child, adult, and family as well as the helping professional are suggested. The appendix contains case reports, and 61 references are listed. Name and subject indexes are provided.