In ref to criminal foreigners, I will testify to this first hand case. I have a relative that owns an small electronic shop in Parana St, CABA, with a few employees.
One day, a group of several men and children irrupted in it with the excuse of asking prices, etc. After distracting the employee, one of the kids ran
and opened the register, stealing the cash there. The employee run the alarm and they were chased and some were captured. They were a Peruvian gang well known to the police.
On the Police station, they were booked and INSTANTLY RELEASED. My relative had to spend hours testifying, but the officer told them that in Argentina shoplifting is not a jailing crime. They just added another sheet to their files, (several inches high) and let go. On top of that, they could not be deported either,since the have a (pile) of former accusations in court. Thats what I call a 006 (a license to steal)