There were 10 knife crimes resulting in injury across Greenwich and Lewisham between May 4 and June 1 - but the issue appears to be London-wide.

At a London Assembly meeting on June 3, Sir Bernard conceded knife crimes involving victims under 25 had risen by 21% in the last year.

In light of this London Assembly Member Len Duvall is desperately urging the police to reconsider how they tackle knife crime - especially as data shows there are spikes expected during the summer months.

Mr Duvall said: “We need urgent action from the Mayor and the police to address this sorry situation and that means a thorough investigation into why stabbings appear to be on the rise.

London Assembly Member Len Duvall

“It is incredibly sad to see so many young lives affected by these inexcusable acts and my thoughts are of course with the victims and their families.

“We know that safer neighbourhood boards and communities are working together to bring this down, but the Mayor and the police need to review their tactics over the summer to stop this trend in its tracks.

"It’s disappointing that it’s only now that the Mayor is beginning to appreciate the gravity of this problem.”

The incidents in Greenwich and Lewisham relate to two double and six individual stabbings and it is believed that at least eight of the 10 victims were between the ages of 16 and 23.

Sir Bernard was questioned about increases in knife crime during a meeting of the London Assembly’s Police and Crime Committee in May, where Mr Duvall told him that the Met must consider the “real trends” behind the violence.

Sir Bernard agreed that injuries from knife crime “had gone up” and were “worrying.”