A crime scene investigator needs to use sound scene processing practices to recover useful evidence. This NIJ Special Report is designed to help trainers and administrators develop training programs for crime scene investigators. It is intended to accompany Crime Scene Investigation: A Guide for Law Enforcement, published by NIJ. Each part of this report includes proposed performance objectives for the student to ensure attainment of the material. Student performance can be measured using written and practical examinations, including the processing of a mock crime scene.