I found this fascinating quote today:
The UAE’s central bank has made changes to the way it handles cheques and has therefore made it a requirement that cheques should have an additional level of security, including a tamper-evident watermark. These have been added to new cheque books and banks are no longer accepting cheques made out using old style cheque books.fakeplasticsouks.blogspot.com, Fake Plastic Souks: Cheque Book Fraud, Jan 2010
You should read the whole article.
