Re: err ,,,, [auburnman]
"It is only slander/libel if it is untrue (or rather a defence against a charge of slander/libel is that what you said/wrote is true). So if a person is subsequently found guilty there is evidence that what you said was true."
My point is that it is still slander at the time because the accused has the right to be treated as innocent until proven guilty and they don't get takesies backsies for the offence after the guilty verdict - when the statement was made the defendant was false as they were legally innocent then. Innocent unless proven guilty could theoretically provide wiggle room for a slick tongued lawyer.
Look at it this way - if you told everyone I was a car thief (when I wasn't) and I later stole your car in retaliation, your statement, although now true, remains false at the time of making.
I am not a lawyer either, but I too like to argue over wordings.