If the person(s) are not the main subject (greay zone) you were fine under the old laws, not sure how it is now.
Again, I'm no expert, but the subject piqued my interest causing me to do a little reading. As I understand it in Germany if the people are incidental to scene, and it doesn't compromise their personal well being, then its okay. From what I read on Austria, even the act of photographing someone is illegal, regardless. Gooner you brought up a point earlier that EU law superseded individual country law. Does that mean if the countries laws are more strict then the EU, are they also superseded by the less strict? Man you'd have to have a degree in international law to stay compliant over there.