This 24-hour course prepares you to use computer-aided design (CAD) applications for accurate, courtroom ready crash scene diagramming using the 2D/3D software DVI-3D. You will learn how CAD diagramming enhances your ability to document, analyze, and visually represent crash scene evidence through precise, scaled diagrams. You will develop hands-on skills to import field measurements collected using a variety of methods, including total station, GPS, drones, point clouds, and baseline coordinate measurements. Instruction covers core CAD functionality such as project creation, linework development, model insertion, layer and project tree management, 2D and 3D diagramming, and surface creation. Advanced topics focus on geo referencing field data, merging multiple datasets, acquiring variables used in crash reconstruction equations, and preparing diagrams for courtroom and presentation purposes. Practical exercises and scenario based projects reinforce learning and allow you to apply CAD techniques to real world investigative challenges. Topics Include CAD terminology, software interface, and project setup Importing and managing field measurement data 2D and 3D linework, surfacing, and scene creation Model library use and visual scene enhancement Layer and project tree management Geo referencing and merging multiple datasets Measurement extraction for reconstruction variables Preparing scaled diagrams for court and presentations Audience Traffic crash investigators, traffic homicide investigators, reconstructionists, law enforcement officers, engineers, and other professionals involved in crash scene documentation and analysis Course Length 24 hours