Farmers have brought tractors to a Budget day protest against proposed inheritance tax changes despite a police ban on agricultural machinery in Westminster.The Metropolitan Police said on Tuesday that conditions have been put in place to prevent people taking vehicles including tractors and agricultural vehicles to the protest in Whitehall.

Farmers have brought tractors to a Budget day protest against proposed inheritance tax changes despite a police ban on agricultural machinery in Westminster.The Metropolitan Police said on Tuesday that conditions have been put in place to prevent people taking vehicles including tractors and agricultural vehicles to the protest in Whitehall.