Judges are being sought for the UK homebrew comp being held in Bristol on the 15th and 16th September this year.
http://www.nationalhomebrewcompetition.org.uk/
I think you just need to register and they will be in touch but mightn't hurt to send an email to Ali too. If you judge you'll be allowed to enter a beer too, otherwise, registration is full (only 300 entries allowed!).
Will be there, judging :)
Not sure if I'll enter anything, tho (logistics.......)