Which cases? What prosecutions? Are you seriously saying that there are no qualified, willing and available workers for random PM or front end jobs and only this particular Indian person, who just graduated from an American college a few years ago is the only one who is able to do the job? I'd love to see a single case like this, got any links?
The cases where the government has proved in a court of law that a company is in violation of the statute or regulation. I am not aware of any successful prosecutions here other than maybe Cognizant which was in the news some time ago.