How to report a illegal immigrant who own a business in U.S?

I asked a lawyer friend of mine about reporting an illegal immigrant/business owner; and he said that the USCIS won't take any action because he or she is paying tax. Is that true?

Answer:
Call 1-866-DHS-2-ICE
Department of Homeland Security, Immigrations and Customs enforcement.

And it doesn't matter if they are paying taxes, illegal is illegal. It will take time, and depends on activity, amount of complaints, area, etc.

Where did he get his law degree, eBay?
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