Sussex Police have asked residents to be vigilant after a group of men claiming to be police officers called at homes in Findon.
The men visited at least two homes yesterday (Tuesday November 12).
They visited one house shortly before 6.30pm, but the woman inside refused to answer her door.
She asked the men who they were and they said they were police officers.
The same group of men visited at least one other home nearby where they claimed to be working for a double-glazing firm.
A police spokesman said: “In this case the resident did exactly the right thing by refusing to open her door to the men.
“Police officers who visit your home will have no problem showing you identification before you open your door to them.
“If you are in any way suspicious about callers do not open your door to them. If they claim to be police officers but refuse to show you identification please call 999 immediately.”
Anyone with information about the incidents in Findon should call 101 quoting serial 1196 of November 12 or email firstname.lastname@example.org.