Looking for a father before taking away his kids? You've got to look on Facebook. Otherwise we're going to reverse you.
So holds the Court of Appeal.
More accurately, you've got to look on Facebook when there's ample reason to believe (as here) that the father's relatives -- to whom you can easily talk -- can point out which Facebook page is father's. It's not enough to just look on Facebook and say "There are too many people with that name; we can't tell which is Father." Just ask his brother. He knows which one.
Not that tough.