This is a detailed example of a contract with students that clearly spells out expectations relating to academic integrity in the classroom.
Tips on Addressing Academic Dishonesty
This website comes from the K-State Honor and Integrity System, which is similar to the model at Texas A&M. This particular resource provides some excellent advice for faculty members on engaging with students about an academic integrity violation.
Harris, Robert, "Anti Plagiarism Strategies for Research Papers," VirtualSalt, last updated: April 26, 2011.
Provides a good overview of ongoing research on anti plagiarism strategies with links to additional reading.