Then I will quote the website zuhause-sicher.de - the glazing is explicitly addressed.
"An initiative of your police" (not your police, of course).
With that, the discussion from my side is ended after your disparaging remark.
Recommended rule: RC-2 windows In the normal private sector – whether house or apartment – the police recommend burglary protection through RC-2 windows. These windows are equipped with mushroom head locking fittings, burglary-resistant glazing (P4A glass), and usually a lockable window handle.