I came in from Germany and they checked and stamped my passport on the train.

I had a similar experience. I crossed the border from Germany to the Czech Republic in the middle of the night (by train), and they came in, woke everyone up, and checked passports.

I think this would depend on how you are crossing. by bus by car etc. I believe the cars go through without documents but they do check the buses and trucks.

Hi, it’s because Germans are a bit stupid and they don’t care they are in schengen space. If you travel from Austria, Slovakia or Poland, I’m sure they won’t stop you and check.

As Michal said Czech republic is in schengen space and if you cross borders from other countries in schengen, you shouldn’t be checked. During special occasions they check passports and IDs, but very rarely. Mostly you realize you crossed borders when you step out of your car / train.

On the other hand if you are from outside of schengen space, you should always have your passport with you.

Good luck!

yes they do