Thames Valley Police are warning of scammers who are targeting people in the area.
There have been two reported instances of people being contacted and asked to hand over significant sums of money.
A spokesperson from Thames Valley Police in Aylesbury released the following statement: “Pause…and think. Police officers will never ask you to hand over cash or bank cards.
“If you are in any doubt you can call 101 and speak to the force the officer claims to work for. Our call officers will be happy to check their identity and officers will be happy for you to confirm their identity. All police officers and staff are issued with unique warrant cards which they will be happy to show you. Report all scams to action fraud.”