You're right, it doesn't. No police force in the U.S. has time or manpower to go alien hunting. When Arizona police stop a suspect for probable cause—speeding, shoplifting, whatever—they can ascertain if the suspect is a citizen, green card visa holder, or an illegal. This law impacts the law-breaking illegal alien much more than the low profile illegal.
Correct. But way too many of them have time to park a patrol car with a radar gun at the bottom of a steep hill because it results in revenue!
Just think how quickly the illegal alien flow would cease if every police department in the country was paid $200 for every illegal alien captured and turned over to immigration for deportation. The $200 would be a bargain based on the savings from crime and social service expenditures alone.
Another question: Why is it so terrible to ask people who are not even in the country legally to show their papers, when the same request can be made of a legal guest and, if Schumer and Graham have their way, an America citizen who will be required to carry a biometric ID?
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That is not what the law says. The only qualifiers for stopping and verifying status are contained in the first section...
“For any lawful contact made by a law enforcement official… where reasonable suspicion exists that the person is an alien…”
There is nothing that says that an underlying violation or crime must have been observed, only that "lawful contact" be made (what does that mean?) and that "reasonable suspicion" exist.