If I was an illegal immigrant I think I would be nervous of authorities too. After all, they may have escaped from murderous regimes where torture and unexplained deaths may be the norm. Although they may be told they are safe here there would still be that hesitancy of making their presence felt just in case they were sent back, despite assurances to the contrary.
They have probably, through their experiences in their own countries, lost any trust in authority.
Yes, anniebach is 'all heart' and compassionate as far as I have been able to tell from what she posts on here.