They're manipulating the numbers in one fashion or another.
https://www.rt.com/usa/430153-trump-immigration-crime-germany-merkel/
Trump’s critics may have been technically correct to point out the inaccuracies in his tweet about crime figures, but they are not telling the full truth either. While overall crime figures may have reached an almost three-decade low in Germany, violent crime seems to be on the rise. A university study published earlier this year found that violent crime rose by about 10 percent in 2015 and 2016, with 90 percent of that crime attributed to young male refugees.
Deutsche Welle’s article fails to mention this trend, but quotes the same study as saying Iraqi and Syrian refugees in Germany are less likely to commit crimes. This is true, but only when those groups are compared to migrants from North Africa, who committed 17 percent of violent crimes recorded in the German state of Lower Saxony in those two years, despite making up less than one percent of the migrant population.
They probably just stopped collecting stats on shoplifting or something. Kind of like how the UK turned a blind eye to all the grooming gangs. I have no doubt it will come out that they're leaving out something key. Violent crime rises aways correlate w/ other rising crime stats it seems except this time.
But that is not what this article says. Feel free to post anything relevant.