Ms Webb, a partner at law firm Payne Hicks Beach, said at first sight the case seemed contradictory.
"At first sight Frankie Boyle's successful claim for libel against the Mirror for being called a racist appears a contradiction, as this is the man who can make jokes about Katie Price's disabled son and the disappearance of Madeleine McCann," said Ms Webb.
"However, the jury was clearly able to differentiate between what is tasteless or offensive and what is defamatory. They also considered that despite the fact that his stock in trade is to create humour at other people's expense he was entitled to protect his own reputation against a serious accusation of racism."
She added: "Knowing what it is like to be on the receiving end of hurtful comments, whether defamatory or not, I wonder whether Mr Boyle will now change his approach to his humour?"
Mr Boyle, 40, from Glasgow, said he had sued because he had always "made a point" of being "anti-racist".