@H2O MAN,
Well, perhaps the USA had learnt from what they did before? Until 1990, there still was the death penalty possible in Berlin for owning longer knives, ammunition or any other kind weapon. And if you knew about such, but didn't report it, you got prison up to 5 years ... (
Law No 43 of the Allied Control Council)
This was changed only with the "Treaty on the Final Settlement With Respect to Germany", legally effective from 15 March 1991 onwards ....