text: for the benefit of everyone who wants to know- how do you determine/prove/report illegal aliens, and to whom? lets get some techniques made available to those who choose to pick up the banner so that they may be empowered locally. i ask them, "are you here legally?".  they'll usually tell you.  ice has a 24-hour hotline for citizens to report any suspicious activity.  that number is (866) 347-2423 ************************** contact crimestoppers at:  (800) 555-1111 **************************  call and complain!!!!!  the toll free phone numbers to the  us capitol in washington dc are:  (888) 355-3588,   (877) 762-8762   (866) 340-9281  internal revenue service (irs) 1-(800) 829-0433 for tax invasion.