Sorry it doesn't work that way. I did do background on ALL employees. It was required by my insurance. Unless the numbers they stole were from a criminal OR the identity theft was reported, the background check comes back clean. I did check references but those are pretty easy to fake as well. I even checked credit.....but again in most cases the ID is stolen so a credit history will show up.
Anything more than that an employer can be sued. And I have been sued.
If the federal government would just do it's job and secure the border this wouldn't be a problem.
AZ may be making a mistake. But atleast they are trying to protect their residents. That is more than we can say for the federal government