Can I take Alcohol into the event? 
Providing you are 18 or over, you can take alcohol into the campsites, so long as it is not in a glass container. 
You cannot take alcohol into the festival arena areas due to licensing laws, but you can take alcohol purchased in the arena back to the camp sites.

Can I take Alcohol from the campsite into the arena?
No

Can I take Alcohol from the arena into the campsite?
Yes