Metropolitan Police Service
The woman's injuries are not life threatening.
Organisers say focus on criminality is "stifling" the world-famous street festival.
Police given extraordinary powers of arrest under Section 60 laws.
The detection system is part of a host of security measures.
The women are in a critical condition in hospital.
But watchdog ruled he failed to do his job properly.
Do you recognise him?
'This is the true face of fascism. No Paseran!'
“Simply put, we have everything we need from the tower.”
The incident occurred last September.