Tried to get some info about metaldetecting in Greece. Next week I'll be on vacation at a greek island -Lesvos- for a week. First the internet: it's allowed, its not allowed, its allowed, its not allowed. Who's right

?
Then I asked at a local greek restaurant to call the Lesvos island police, answer:... it's not allowed! Then I've got a mail from a greek (Opel GT-)forum member. He also called for me to the same policestation on Lesvos. Guess what: they told him it's allowed on the beach....
Soon they're coming to take me away with their clean white shirts. It's called insanity I believe.
I still have 5 days to find out who's right. But the greek police are no softies, you go to jail for some years when you search on the wrong place, they told. Who's they? All the people who say: its allowed, its not allowed, its allowed, its not allowed...
Anyone has experience with Greece?