There was a whiff of controversy back in the late 90's. I think he was being offered a knighthood at the time the accusation was made in your lovely British press and he refused to accept the knighthood until he the charges had been investigated and his name was cleared.
I find it hard to believe that a man who put his life into Sri Lanka and was constantly lauded by their government would be involved in such activities and be able to get away with it. I'm not the type to judge people because of a tabloid rag's attack on him. Now Gary Glitter, on the other hand.....