A Metropolitan Police team have produced “The Little Book of Big Scams” in two editions for private individuals and businesses. They contain a wealth of advice to help us to protect ourselves from scammers. However aware we think we are, it is so easy to fall prey to these unscrupulous criminals so take a look at the advice provided in these excellent booklets.
The Little Book of Big Scams: http://www.met.police.uk/docs/little_book_scam.pdf
The Little Book of Big Scams (Business Edition): http://www.met.police.uk/docs/little_book_big_scams_business_edition.pdf