Earlier quoted context omitted.
Thank you for the actual statistics; can you provide a source for the legislative change? I found sources for 2005 and 2008 changes, but not one for 2013. There's also one particular thing that doesn't pass the smell test for me from your German article: "Less than 1 percent of the total crimes committed by refugees are sex crimes, going against rumours spread on social media that these have become more common with t…
How about you stop trying to interpret articles that try to interpret reports and instead go straight to the source aka the reports? Here's the BKA report on "Crime in the context of migrant influx 1st Quarter of 2016": https://www.bmi.bund.de/SharedDocs/Downloads/EN/Themen/Siche... That report also puts the number of "sexual assaults", out of all the crimes committed by migrants, at 1.10%.
In fact, the report just reaffirmed what I've already heard elsewhere - the vast majority of crimes come not from "Syrian refugees", but migrants from countries without a crisis that would lead to them seeking asylum. This has been a very common criticism of the "floodgate" approach to accepting all immigrants regardless of their ability to justify their refugee status.