People are being urged to be wary of scammers purporting to be police officers contacting them.
There have been several reports telephone or house callers who claim to be crime prevention officers.
But police have said say they would never cold call anyone to offer crime advice and have urged people not to speak to anyone who cannot provide official police ID.
One neighbour called police after receiving such a call on Friday, February 28.
If you receive a telephone call like this, call police on 101 immediately. If ,someone calls at your door offering crime prevention advice, do not let them in, shut the door and call police on 999. For crime prevention advice call police on 101 or visit metpolice.uk/sutton.
- 'Catastrophic': Reaction as Heathrow Airport expansion gets go-ahead with government choosing third runway
- Dad who barricaded himself in Carshalton home with gas canisters 'wasn't going to blow house up'
- Man rushed to hospital after motorbike and car collide in Worcester Park
- High Street pub to hold fundraiser for regular punter's sister suffering with Multiple Sclerosis
- South Londoners making most of new hopper bus fare - especially these two routes