Police in Aylesbury are warning residents of bogus cold callers trying to sell products on your doorstep.
An elderly man paid £400 to "Nottingham Knocker" recently for some cleaning items (pictured) that weren't worth the money - luckily he got his money back.
Police are advising people not to answer the door if you don't know the person, and are offering 'NO COLD CALLERS' stickers if you need one.
Remember, any door to door sellers should have a genuine pedlar's certificate.

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