Is it legal to distill already distilled alcohol? And is it safe to do so?

Friends of mine made bowls of tails a while ago but forgot to drink it. Is it possible to recover the alcohol from the expired fruits by distilling it? Technically I won't be making new distilled alcohol, so I wonder it would be legal. Since it's not red wine there may not be methanol present. however I'm unsure if the expired fruits(2-3 weeks) would have any influence on this. (I removed (most of) the fruits a week ago or so) . Are there any other ways of extracting the alcohol?