Police were given special permission to use stop and search powers on anyone suspected of carrying knives overnight in Stevenage.
Officers targeted people thought to be involved in crime between 11pm on Friday, 22 March, and 8am on Saturday morning.
Insp Patrick McPeaker, from Hertfordshire Police, said the action had been taken because of concerns raised by people living in the area.
He said the checks, carried out under section 60 of the Criminal Justice and Public Order Act, were "a way for us to disrupt crime and keep the public safe".
The order was temporary but meant police could stop and search people without needing "reasonable grounds to do so".
"There are serious consequences if you choose to carry a knife. Not only will you face a possible custody sentence and criminal record, which could affect your job prospects in later life, you could case yourself or another person serious injury or even death."
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Stevenage Formula One world Champion Lewis Hamilton has posted an explanation of his "slum" comments made during Sunday's Sports Personality of the Year Awards on the BBC.
The 33-year-old finished second in the public vote behind Tour de France winner Geraint Thomas and during a pre-vote interview he spoke about his background growing up in the Hertfordshire town.
He told presenter Gabby Logan: "It's been a really long journey, a dream for us all, as a family, to do something different, to get out of the slums.Well, we would say it's not the slums, but just come out from somewhere and do something. We all set our goals very high but we did it as a team."
Hamilton posted a video to his nearly nine million followers on Instagram to say he was "super proud" of his home town.
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When it comes to football, Pep Guardiola is widely regarded as the man pushing the envelope. But even he probably hasn't thought of this first class initiative developed by Stevenage FC. They've taken the idea of Fan mail and turned it on its head - by creating a very special letter designed to attract new fans to the Lamex. And the posties chosen to take the message out on the streets are perhaps more used to delivering a pass than a letter!
Watch Donovan Blake's report below.