Eight teenagers, including the son of an MP, who took part in violent scenes at last year's Leeds Festival walked free from court after the judge heard they were not the ringleaders.
Toilet blocks were set on fire
More than 40 people were injured and damage estimated at £250,000 was caused at the music event at Temple Newsam Park in August 2002.
Toilet blocks were set on fire and police were pelted with stones and missiles.
The teenagers - including the son of Clwyd South MP Martyn Jones - had admitted their part in the disturbances.
Neil Clark, prosecuting, said one witness with 12 years experience in the army told investigators the trouble was worse than anything he had seen as a soldier.
He said others described the events as "absolutely terrifying".
On Wednesday at Leeds Crown Court, the eight were given community service orders ranging from 130 to 240 hours.
In addition, they will have to pay compensation ranging from £200 to £500.
They are: Craig Higgins, 18, of Strathaven, Lanarkshire; Kevin Brown, 18, of Selkirk, Scottish Borders; Michael Millar, 18, of Strathaven; James Cockburn, 18, of Galashiels, Scottish Borders; Martin Bellamy, 19, also of Galashiels and John Bower, 19, of Barkston Ash, Tadcaster, North Yorkshire; Nicholas Jones, 18, of Acton, Wrexham, and Stuart Gunn, 18, of Strathaven.
Jones is the son of MP Martyn Jones.
Three other people have still to be dealt with by the crown court, although all have admitted violent disorder.
Four juveniles pleaded guilty to the same offence at a previous hearing in youth court.
All those convicted were tracked down after police released images of 24 suspects taken on the night to the media, the court heard.