Can't believe you didn't mention guns, all worth while in my book. All aimed at keeping people alive or out of hospital.
More like the police who requested the fencing. whilst I agree it is nice, family orientated event, for some, there has been a long history of violence associated with it, all be it least a small number of people (gangs/groups of youths) who attend with the intent on settling scores etc. At the end of the day if the searches, keep weapons out and decent minded people attending then I personally think its a good thing. The other thing to consider from the councils point of view, is that these events are not cheap to run. From policing, setting up, cleaning up and rectifications works to the event site... It doesn't come cheap. Given that councils, police (along with schools & NHS) are all struggling for funding you might be able to understand why they are trying to maximise revenue /maintain safety whilst keeping the event free. I am convinced that the last thing the council want to do is charge for the event.... It is more likely to be pulled due to lack of finance.
And your point is ?
NO BLACK BIN BAGS!
What a great event to go to! There's a 'Before I Die' tent, and a 'Prostate Cancer Awareness' tent..... Being Lambeth, there's probably a 'Let's Fight Knife Crime' tent too!