As well as listing what equipment will be available to facilitate searching on entry

Good question!

Who gets the job of entering the data (in timely way) from returned forms into that machine?

Who decides incidence potentiality at any given event? Will they flag certain events?

BLACK - 25 mixed teenagers and adults HipHop birthday party in Peckham
ACTION - major police presence in riot gear

ORANGE - St Patricks parade in Covent Garden
ACTION - moderate police presence

WHITE - 5 blacked up morris dance sides / handful of folk musicians / 2 ferrets and a horse / Harley Davidson Club at a beer fest in a pub southeast London
ACTION - police presence none - unless by infiltration in a morris side.