Former Cabinet minister and Sutton Coldfield MP Andrew Mitchell must accept the verdict of the High Court on the "Plebgate" libel action and move on, David Cameron has said.
The Prime Minister insisted it was "never right to be abusive or rude" to a police officer and said the judge had "made very clear his verdict".
Mr Justice Mitting decided that the former chief whip did call Pc Toby Rowland a "pleb" because the officer did not have the "wit, imagination or inclination" to invent it.
Asked about the outcome of the case after he made a keynote speech in Staffordshire on immigration, Mr Cameron said: "On the issue of Andrew Mitchell, I mean, let me be clear - it is never right to be abusive or rude to a police officer. I think that is extremely important.
"But, look, we've had a court case now. That's how we do things in this country.
"The judge has made very clear his verdict and I think everyone should accept that verdict and move on."
Mr Justice Mitting said he had reached the "firm conclusion" that the 58-year-old MP used the "politically-toxic" word "pleb" in Downing Street in September 2012 when he was not allowed to cycle through the main vehicle gates.
Mr Mitchell, who resigned as whip a month after the altercation, vehemently denied this during his two-week libel action against News Group Newspapers.
More top news
Another dry day with long sunny spells.
Another dry hot day with long sunny spells and light winds.
A man who was stabbed to death in the Sparkhill area of Birmingham on Friday night has been named as Hashim Khan,