More than 200 dangerous knives have been taken off the streets during a month-long knife amnesty.
The haul includes knuckle-dusters, samurai swords and flick knives.
The amnesty was part of Operation Limit, the force’s crackdown on violent crime, and also forms part of the national ‘Save a life’ campaign being run nationally.
The blades will all be melted down to create an angel statue in Trafalgar Square in memory of those who have lost their lives to knife crime.
Knifes can still be handed in by calling 101, and arranging for a police officer to come and collect it.
Assistant chief constable Mick Stamper, said: “Some of the weapons we have had handed in were clearly produced to inflict serious injuries.
“Thankfully we do not have a big knife crime problem in Northants but nevertheless every one recovered prevents a possible tragedy.”