Dancers from the ELIMU float parade down Chepstow Road, during the second and final day of the Notting Hill Carnival, in London, Monday Aug. 29, 2016.
They have called for a "full-scale review" of Carnival after eight of them were hurt and taken to hospital.
London police have arrested more than 100 people amid sporadic violence at the annual Notting Hill Carnival, an annual celebration of Caribbean culture in the British capital that often includes trouble on the sidelines.
Mr Marsh said: "This is not a peaceful and fun-loving event that our members look forward to policing. Next year we are coming back". This year colleagues were assaulted, abused and spat at. Forty-three were injured - with eight needing hospital treatment. How can that be right? It's completely and utterly unacceptable. The festival is celebrated on the same holiday weekend every year.
The late activist Michael X is credited with providing 26 Powis Terrace in Notting Hill as a base for the school's activities, and it was here that Laslett's idea of a free festival was born.
"The organisers need to understand that this event can not carry on regardless". He has been taken to a west London police station for questioning.
There were four knife attacks reported during the first day alone including a 15-year-old, who is in a serious condition.
None are believed to be in a life-threatening condition.
There were also four arrests for sexual offences, nine of actual bodily harm (ABH) and two of grievous bodily harm (GBH).
The carnival proper started in 1966 when local resident Rhaune Laslett organized a "jump up" for local children in Notting Hill, which at the time was considered a slum but is now one of the most expensive areas in London.
In addition, approximately 1,000 small nitrous oxide canisters have been seized in a number of separate operations.
A spokesperson for the London Mayor said his office would work to tackle gang and knife crime, and City Hall would "thoroughly review" the Carnival.
"The database has been populated with images of individuals who are forbidden from attending carnival, as well as individuals wanted by police who it is believed may attend carnival to commit offences".