A shocking video has emerged of a grinning reveller grinding against a female police officer at Notting Hill Carnival which some social media users have slammed as being 'sexual assault'. Kevin McGregor said: 'It looks to me like she's laughing? If she was unhappy she would have pulled out her nightstick or pepper sprayed him.' 

A spokesman for the Met Police told MailOnline: 'The female officer has been spoken to and enquiries are ongoing.

In the short video from the Carnival in west London last weekend, the man has pinned the officer between his arms and the railing behind her.

The female officer struggles to move her arms to keep her hat steady on her head as the dancer gyrates and thrusts his body against hers. The footage provides further suggestions of violence and disrespect towards police officers at the Carnival, which led some from the Met to call for the Carnival to be banned and instead turned into a ticket-only event in Hyde Park.

Ken Marsh, chairman of the Metropolitan Police Federation, said 31 police officers were attacked during the two-day event, with some slashed with broken bottles, spat at and bitten while others had acid thrown at them.

In one of the worst confrontations, three PCs had bloody spit sprayed in their faces by a man claiming to be HIV positive.

Four people were stabbed, more than 300 arrested and dozens of weapons seized during Europe's biggest street party.