Perhaps it is all too easy to blame the fair though it may not be the cause. But I know that Hertford and Hartham Common and The Meads are a particular attraction for some travelling up to Hertford East, particularly in school holidays.
There were many instances last summer with local kids confronted by what they called Cheshunt and Hoddesdon groups of kids. The Hertford kids The kids know where these thugs come from.
Aside from the two stories in the Mercury I know of others including a local fourteen year old being chased by a thug with a bottle last weekend.
http://www.hertfordshiremercury.co.uk/T ... story.html
http://www.hertfordshiremercury.co.uk/A ... story.html
I'm not assuming the Hertford teenagers are saints but it would seem that trouble happens to them.