The trend was highlighted in figures obtained by a Freedom of Information (FOI) request to the Metropolitan Police Service by Newsquest London.

It is the most recent comparable data available, after an update to the Met’s procedure for logging incidents in 2024 changed the way offences are recorded.

The result has meant that data from 2023 and earlier can now not accurately be compared against 2024 knife crime data, or that which has been recorded thus far for 2025.

According to the Met, the change to the system has caused some cases of incomplete data, particularly in categories relating to age and date of birth.

A spokesperson said: “We reviewed our recording of offences where a knife or sharp instrument has been used from April 2024 onwards.

“This has shown over counting for some c

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