This article describes the state of knowledge about extended assessments/forensic evaluations in situations of possible sexual abuse. It provides a critical review of the modest body of relevant research, describes two models for extended assessments, and presents descriptive survey findings of 62 professionals conducting extended assessments, most of whom conduct extended assessments intermittently as part of their other work on sexual abuse cases. Agencies should consider conducting extended assessments with young or traumatized children whose sexual abuse allegations are not resolved with a single interview as well as in complex child sexual abuse cases. (Contains 1 note.)