Syrians and Afghans are significantly noticeable: non-German suspects are considerably overrepresented in violent crimes. This is proven by unique figures obtainable to WELT AM SONNTAG. What ought to comply with from that is extremely politically controversial.
https://www.welt.de/politik/deutschland/plus69d8cb2c246b3860d5021e78/kriminalitaet-etwa-jeder-zweite-verdaechtige-auslaendisch-die-umkaempfte-wahrheit-ueber-gewalt-in-deutschland.html