Police arrested additional revellers on the second day of the Notting Hill Carnival, Europe's largest street party, following 243 detentions on Sunday. Monday, designated as 'adults day,' saw continued police activity amid loud sound systems, larger crowds, and heightened festivities.

On Monday, police apprehended individuals within the carnival grounds and on its "approaches." The reported offences encompassed drug and weapon possessions, assaults including those on emergency workers, and sexual offenses. Commander Claire Smart, the gold commander for the carnival operation, stated that the police aimed to ensure safety while warning those intending to commit crimes to stay away.

The 60th anniversary celebration deployed an intensive policing operation, including over 7,000 police officers and 3,000 security stewards. Metal detectors were installed at the festival's perimeter. A Section 60 order was also in effect, granting officers the authority to stop and search individuals without requiring reasonable suspicion.

Live facial recognition technology was utilized, leading to the identification of 61 individuals wanted by the police. This technology was part of an effort to enhance safety and security at the event, which has faced scrutiny in recent years due to concerns over violence and drug use.

Authorities also took measures to manage crowd flow, with Transport for London making some Underground stations "exit only" to prevent crushes. Revellers were observed climbing on bus stops and engaging in dancing amidst the crowds.

Sunday's 'family day' saw 243 arrests for offenses including two knife attacks that did not result in life-changing injuries. The Met Police reported that the mood on Sunday was "overwhelmingly positive and celebratory" despite the number of arrests.

In the lead-up to the carnival, police seized over 70 knives, including zombie knives and a machete. Additionally, seven people were arrested in a joint operation on suspicion of planning robberies at the festival. Approximately 330 individuals were banned from attending as part of bail conditions for other offenses.

The Notting Hill Carnival is estimated to contribute nearly £400 million to the economy annually. However, the policing operation incurs significant costs, with the Met's operation costing £15.7 million last year. Additional funding was provided by City Hall for stewards and CCTV, and local authorities face substantial clean-up and staffing expenses.

Past carnivals have been marred by violence, including murders and stabbings. Organizers maintain that the event is safe and have labeled criticism as "unfair."