Bogus callers are visiting homes in Fraserburgh and the surrounding area Police Scotland have warned.
The callers have typically attended in panel vans and have been offering householders tools and equipment for sale from the rear of the vans.
Some residents have spent over £500 and on closer inspection have found the tools did not work, are not the make they purport to be or are simply inferior quality.
PC Kev Marron, Crime Reduction Officer, said:“In this case there is a concern that some of these tools are not safe for use.
“We would never encourage anyone in our communities to purchase items on their doorstep as it could cost them a lot of money for poor quality goods, they could unwittingly be guilty of handling stolen items or putting themselves or others in danger.”
He added: “Often items that seem the genuine article are actually counterfeit.”