TVP say they've had reports of a man going to a number addresses in Aylesbury, claiming to be there for a meter reading
He's said to be wearing a hi-viz jacket but has no form of identification or equipment with him.
Police are reminding people that if anyone arrives at your address to do work on your property that you are not expecting, always ask for identification and do not let them into your property.
You can report suspicious individuals by calling 101.