what do I mean by that? well in Germany people's criminal records aren't public like in the US (you know when someone is a pedo or a rapist their name is revealed to the public) but in Germany it seems not to be the case for privacy reasons I guess?(not sure if it true)
now if someone had a long criminal record and a lot of people reported him to police in another country which is publicly available is it possible to use these records against him? and also when it comes to voice recordings is it possible to use recordings from another country where recording people without consent is legal and normal?
so in short "is it possible to use evidence that isn't accessible to the german public from another country?"