There are several US/UK university websites that give information or quidance for their students and staff.
However, I don't think that we have that information in Mahidol University for our students and staff.
I think it's time to set it up, and I would like to recommend some websites as guidelines.
http://www.aaps.ed.ac.uk/regulations/Plagiarism/Intro.htm
http://www.elearn.malts.ed.ac.uk/services/plagiarism/faqs.phtml
Both belongs to the University of Edinburgh, where I had studied PhD during 2002-2006.
There are guidlines for undergraduate and graguate students, including staff. The University also use the commercial plagiarism detection software "Turnitin".
Hope this would be helpful.