In every street in the South East someone could be being conned out of thousands of pounds - because of scam mail.
Sussex Police have become the first force in the country to try to find out exactly how bad the problem is.
They say elderly and vulnerable people are sometimes parting with their life savings to criminals sending them letters - posing as charities, competition organisers and suppliers. The cheques they send are funding criminal gangs abroad.
Andy Dickenson reports and speaks to victim's son Chris Becket, Insp Nick Bowman and PC Bernadette Lawrie from Sussex Police.
This story also features a police interview with the late Tom Beckett.
She parted with £175,000 pounds of life savings with the promise of a safe investment. But tonight a pensioner from Winchester says she's ashamed to show her face after becoming one of hundreds of victims of an international phone scam.
The con artists tricked people into buying £15 million worth of fake shares - providing themselves with a luxury lifestyle of fast cars, designer watches and multi-million pound properties.
More than 100 suspected fraudsters are now being held by police who believe at least 850 victims were targeted. But as Sarah Cooper reports, police think that's just the tip of the iceberg.
Hampshire Constabulary have charged five men and one woman in connection with an alleged dating website scam.
Emmanuel Oko, aged 29
Brooke Boston, aged 28
Monty Emu, aged 28
Eberechi Ekpo, aged 26
Chukwuka Ugwu, aged 28
Adewunmi Nusi, aged 26
All are from Southsea, expect from Adewunmi Nusi who is from Hermitage in Berkshire.
They have all been charged with conspiracy to commit fraud by false representation and are due before magistrate at Basingstoke Magistrates Court today.
Detective Constable Darrin Carey said, "These charges come following a lengthy investigation into an alleged scam where women were asked to hand over significant amounts of cash after meeting men on the match.com website.
"Alleged victims in this case are from the Basingstoke area, across Hampshire."
A pensioner has told ITV Meridian how she spent more than two hundred thousands pounds on postal scams - one of the worst cases Trading Standards has ever seen.
Seventy-six year-old Sylvia Kneller, from Farnham in Surrey was bombarded by letters promising prizes. She responded because they were written directly to her - and she thought they were genuine. But the only intention was to rip her off. Andrew Pate reports.