All professional psychological work should be accurate and ethical. Errors of omission or commission are likely to have serious repercussions in forensic psychological practice. In this setting, even small mistakes can lead to embarrassment, criticism, licensing board sanctions, and possible criminal charges as well as civil lawsuits. The devil is in the details. The Forensic Documentation Sourcebook, 2nd ed. provides the structures likely to improve quality of forensic psychological practice, enhance the reputation and credibility of the forensic psychologist, and prevent improper or unfortunate occurrences. Almost all of the forensic psychologist’s work is within the framework of adversary judicial activity. Opposing counsels will search for errors or omissions.