Plagiarism, in and of itself, is not a crime. At most, it is an academic matter and should be taken up with the school.
You may have a separate claim for copyright infringement. You should take your original work to a copyright (or intellectual property) local to you along with a detailed explanation of the material taken and determine if you have a claim for copyright infringement and, if so, what your options are. Many attorneys will offer a free consultation, which will provide more useful information than you will obtain from a question in this forum for your particular situation.
Good luck,
Todd
Answered on Sep 03rd, 2014 at 6:15 AM