It led to 411 blades being recovered, including machetes, Rambo-style knives, lock knives and kitchen knives, as well as 166 other weapons, with 994 people arrested as a result.
Commander Alex Murray, the Met’s violence lead, said: “I’m convinced that with us seizing so many knives, we have prevented further stabbings.
“The recent incidents of violence we have seen in London reminds us exactly why operations like this are so important.”
The force, alongside BTP, said it was using drug detection dogs and knife arches at transport hubs to help deter people from carrying weapons and drugs on trains and tubes.
Targeting those supplying the drugs was also a priority and officers used automatic number plate recognition technology to target people carrying and supplying drugs on the roads.
The death of Junior Jah took the number of teenage knife killings in London this year alone to 12, just three short of the 15 in the whole of 2020 — and on course to overtake the figure of 26 recorded in 2019.