OER are teaching, learning, and research resources that reside in the public domain or have been released under an intellectual property license that permits their free use and re-purposing by others. ~ William & Flora Hewlett Foundation
For a more comprehensive overview on OER, see:
“Walls Unit, Texas Department of Criminal Justice, Huntsville 1405011214bw” by Patrick Feller is licensed under CC BY 2.0
This is a sample of several OER Criminal Justice textbooks and course materials available. Additional OER may be found by searching the resources listed on the ACC Libraries primary Open Educational Resources Guide.