Once again, Fachkräfte was meant for migrants, right wing racists write "Fachkräfte" and suggest migrants are illegal and or criminals and of course muslims or arabic or african. Usually the same people count suspects as convicted and ignore other contributing factors to criminal behavior beside skin color, place of birth and religion. The also usually show sharp decline in interest as soon as a crime suspect turns out to be a local, see rampage driving in Mannheim or the AfD member who threatened others with a knife at a Holocaust commemoration in Strausberg.
What about when many commit crimes? Starting with the act of immigrating illegally.