"Open Educational Resources" by Ron Mader is licensed under CC BY 2.0
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.