The concept of YouTube for the Criminal Justice Educator is the provide instructors with dynamic access to supplemental material via video. Nearly 400 videos are categorized and descriptions provided. The links are live from this document. The videos are classified into the nineteen categories. There is some overlap between the categories. The category titles are linked from the Table of Contents. Thus, if you want to view films on Active Shooter, click on Active Shooter in the Table of Contents and you will be taken to that page.