If you were able to read correctly, you could understand correctly... layman is a perfect moniker for you! DCFS is part of DHS ...CPS ist a different entity.
You're the one who can't read, I'm afraid. Try again.
Do you have ANY authority for claiming that what you are calling the DHS is a FEDERAL agency? Any? At all?
Some states also have what THEY (not the feds) call a Department (or Division) of Human Services, as I understand it. But that just reinforces my original point, i.e., that different states have different designations for their STATE agencies which may have functions similar to other agencies, in other states, which go by different names.
Contrary to your assertions, and contrary to what wiki clearly says, "CPS" is merely the name which SOME states use. It is not the same in every state, as you assert (without basis) nor is the CPS some federal agency.