People have been warned to keep an eye out for a text from the police over the next 48 hours as the force attempt to crack down on fraudsters.
Households up and down the country are being urged not to ignore texts from the Metropolitan Police - even if you don't live in London - in a major crackdown.
Normally, a text from someone claiming to be the police may raise alarm bells. But 70,000 texts will be sent out over the next two days, to help Metropolitan Police with their investigations about scammers.