The Hamburg police will only crack down on them if they didn’t get properly licensed to be “Radical Muslim Fanatics Who Seek To Destroy The State”, stamped in triplicate. They have a form for that.
To lay out the Hamburg cops....it’s known around Germany that one central region of town is sort of a forbidden zone. You don’t go around after dark, and if called for some emergency....you go with several cops because the locals don’t like the cops on their turf. All of this comes up because of 9-11 and what the FBI came to discover as they rode up to Hamburg to discuss leads after the event.
I can’t think of many episodes like that...as I live around Frankfurt and we have Islamic zones there but cops won’t back down in that town.
The curious thing which I will point out after viewing the whole Islamic thing is that there are various foreign communities which have no connection to each other (Turks, Lebanese, Syrian, Iranian, Egyptian, Algerian, etc) other than Islam. The Saudis? If you find any...they live in upscale homes and drive expensive cars, and they never hangout with the lesser crowd.
Whoever dreamed up the mosque construction scheme in Germany....merely pinned hopes on drawing the various groups to frequent together and build some social club together, with Islam weighing more than being German, or being a former Syrian or Turk or Egyptian. It’s an odd strategy to play out, but appears over twenty years to have worked.