✔ 最佳答案
No problem because I'm living in Vienna now.
But my experience is that don't talk to strangers. In case somebody says he's police and want to check your purse/ bag, don't show it. You should ask he/them to go to the police station that you know.
In case of emergency and need to call police, call 133.
PS. by the way, please keep some small coins, e.g. 10, 20, 50 cents, for toilets.