This is a serious case of academic misconduct for both undergrads and grads.  I would file charges and follow the procedures to ensure an F in the course and a notation of academic dishonesty in the student's record.
Laura

-----Original Message-----
From: Academy of Legal Studies in Business (ALSB) Talk [mailto:[log in to unmask]] On Behalf Of Sally Gunz
Sent: Thursday, April 15, 2010 11:32 AM
To: [log in to unmask]
Subject: Quick question

Quick question for a colleague:

A student is doing a research paper. Turnitin shows a huge overlap with 
another paper -- that student's own other paper with no citation to that 
paper.

 From your perspectives, what, if any, academic offences have been 
committed? Further, is it of any relevance that the students were not 
specifically told that they could not submit something that has already 
been accepted for academic credit elsewhere? Please note, masters level 
student.

Sally