Also, the crime statistics are not as nice on the surface as you'd expect them to be when just reading the headline ...
Murders have risen again in recent years, sexual offenses have spiked, (serious) assaults (= grevious bodily injuries) have almost increased by 3 times over the past 30 years.
Also, there was a general spike in crimes between 2014 and 2016, before dropping again in 2017. The increase in crimes during the immigrant wave years is representative to about a million additional crimes that could have been prevented if Merkel kep the border shut instead of pulling the folks in.
https://www.n-tv.de/politik/Ist-Deutschland-wirklich-sicherer-geworden-article20424789.html