Earlier quoted context omitted.
That’s because Bavaria is close to the Czech republic and the bavarian/czech border is a well known import corridor. Google further info on that, if you’re interested. Also, I invite you to compare the NRW numbers to the Berlin ones.
The drug importers don't sell their stuff along their import corridors. They bring it to next distribution center before they start splitting it up. according your logic Texas would be one of the states with a high drug overdose mortality. You are confusing small scale crystal meth smuggling with large scale opiate importing.
This lacks perspective. Border states have "black tar" heroin, which comes from mexico, and is less pure than northeast heroin which is purer and in powder form instead of tar.