David Cameron was forced to defend his chief whip Andrew Mitchell again on Wednesday amid fresh demands for him to be sacked over his notorious confrontation with police.

Labour leader Ed Miliband used the first Prime Minister's Questions since the incident last month to launch a furious attack on Andrew Mitchell.

Pointing to Mr Mitchell, sitting near David Cameron on the Government front bench, Mr Miliband insisted he should have been arrested like any other "yob" who had sworn at officers.

"While it is a night in the cell for the yobs, it is a night at the Carlton Club for the chief whip. Isn't that the clearest case there could be of total double standards?" he said.

"His position is untenable. In other words, he is toast."

But Mr Cameron accused the Opposition leader of focusing on "clever political questions" rather than the big issues facing the country.

"What the chief whip did and what the chief whip said were wrong. I am absolutely clear about that," he said.

"That is why it was important that the chief whip apologised and that apology was accepted.

"The apology has been accepted by the officers concerned, it has been accepted by the Metropolitan Police."

The Premier added: "He doesn't want to talk about what we need to do in this country to get our deficit down, because he has got no policies."