http://interactives.ap.org/2017/nat-guard-order/
AP have obtained a memo containing amongst other stuff plans to: expand local and state police powers to that of immigration officers to stop/detain/investigate/search
people (not $#@!ing
aliens I despise that word to describe another human being) specifically those they suspect to be illegals. So, existing police officers with reputations for racism are going to be given the right to racially profile. Superb.
Secondly, they want to mobilise the National Guard to "round up" illegal immigrants. The symbolism of heavily militarised personnel rounding up minorities would be far too uncomfortable to watch. Not that it counts for $#@! all but the Trump administration have denied this is the current policy direction at this time.