Research conducted by the Federal Bureau of Investigation divides child molesters into two groups based on descriptive typology. Situational child molesters do not have a true sexual preference for children but engage in sex with young people for varied and sometimes complex reasons. Preferential child molesters have a definite sexual preference for children, and their sexual fantasies and erotic imagery focus on children. The key to conducting a proper interrogation of either type of child molester is to document behavior patterns thoroughly. The interrogator should gather as much information as possible on both the offender and the victim. In addition, the offender's interpersonal style and methods of approaching and seducing children should be established in the interrogator's mind. Skillful interviewing and interrogation are essential elements in resolving child sexual abuse cases. Developing themes is the cornerstone in obtaining a confession from child molesters. The offender should be confronted with physical and documented proof of the violation, and the investigator should observe the offender's nonverbal behavior throughout the interrogation process. Themes in successful interrogations are identified, and the forensic value of using the polygraph is noted. 2 references