A resident got in touch with the following advice:
I have just reported a cold caller to the Cambs Police 101 number.
"Hawkers" are young lads who knock at the door saying that they are from a Young Offenders Institute and are selling cleaning goods as a sort of rehabilitation. They are usually bogus and are in fact a cover for (distraction) burglaries. I have just had one at the door by the name of Bobby Lee, from Middlesborough, working for "Creating Work UK". A quick Google search shows that this company does not exist.
If anyone has had a recent burglary, it could be linked to these callers and it may be worth asking people to be extra vigilant now that these youths have been in the area. They may have also been interested in copper piping etc in the empty properties.