Deputy Assistant Commissioner Matt Ward, the police commander for this year’s event, said the force was working with organisers and partners ahead of Carnival.
“Regrettably, amongst the millions of carnivalists who have attended over many years there has been a tiny minority of individuals intent on causing serious harm to others, including violent crime and sexual offences,” he said.
“Their actions stand in stark contrast to the traditions and values of Carnival and I welcome those voices in the community who have stood up to condemn violence and serious criminality at the event.”
The Met added that it was working with police forces across the country to seek banning orders for people who have a history of violence or sexual offending at Carnival.
The force said the LFR cameras on the approach to the event would search for people marked as wanted on the Police National Computer, those who are shown as missing and people who are subject to sexual harm prevention orders.
It added that biometrics were immediately and permanently deleted for people who were not wanted by the police.