Everything I said is more or less based on the fact that the UK is the country most plagued by current developments from within - in Europe. One would think keeping tabs on a certain LOT would be a good thing... So having a standard form of ID would be logical.
Is it not strange those 90% of us lawabiding citizens often comprehend practises in place to catch the 10% non abiding as a negative thing.....
Yes german law requires you to be able to ID yourself via ID card / Passport to law enforecement officers at all times. I just forgot my wallet...