PEOPLE have been urged to get rid of potential crime weapons.
The police call is part of a clampdown on anti-social behaviour in north Kirklees.
The area takes in Dewsbury, Batley, Ravensthorpe and Mirfield.
Police are working with organisations such as Kirklees Council to tackle yobbish behaviour and give bored youngsters something to do during the summer holidays.
Now they have started a Bin The Blade scheme to take potential weapons off the streets.
Knife crime is low across West Yorkshire, but a spate of deaths in London has turned on a huge media spotlight on the issue nationally.
People can pop the knives in two surrender bins in Kirklees.
One is at Batley Town Hall and the other is at Ravensthorpe Library.
Insp Nicola Gibson, of Kirklees police, said: "The surrender bins are intended to give the public a chance to make a difference.
“If you or anyone in your family has a knife or sharp weapon that is no longer needed, such as a hunting or fishing knife, hand them in at one of the surrender bins.
"Knife crime is low and we need to make sure people understand that they simply do not need to carry weapons on the streets for any reason at all.”
The surrender bin at Batley Town Hall will be available Monday to Friday from 7am to 7pm and the Ravensthorpe Library bin is available between 10am and 12pm and from 2pm to 5pm Monday to Saturday, except for Thursday mornings and Saturday afternoons.
Wrap the knife in thick paper or cardboard before putting it in the bin.
All the knives will be destroyed at the end of the summer.