In the UK you cannot have unpermitted gatherings on your own property where the music being played "includes sounds wholly or predominantly characterised by the emission of a succession of repetitive beats."
I like the way they also printed some of the sticker notes on the actual labels. You can see this if you click on the teal sleeve image at the top left.
It's hardly surprising, really. The generation who lived through the hedonistic days of the swinging 60s and changing political landscape of the 1970s while enjoying student grants and free university tuition would only naturally litigate against young people wanting to have a party in a field once they grew old.