People in the Northampton and Kettering area are being warned about rogue doorstep traders selling knives.
The advice from police and trading standards is not to buy goods or services from anyone cold-calling and trying to sell you goods on your doorstep.
If people are concerned about a caller at your door or suspect that rogue doorstep traders or distraction burglars are operating in the community they are asked to call the dedicated Doorstep crime Action Network (DAN) number 0345 23 07 702.
If you believe a crime is in progress, please dial 999. Remember, if you’re not sure, don’t open the door.
People can also get a No Cold Calling sticker from Trading Standards by calling 0300 126 1000.