There have been some forged Qatar Riyal notes around in denominations of 500, 100 and even 50. Difficult to detect the forgery, except with advanced machines. It is possible that forged notes might have been circulated abroad, so I feel it is not safe to purchase QR outside Qatar. Better to bring in equivalent US$ from a reliable source, like a bank or authorized exchange company. Then you are sure you have the genuine stuff.
There have been some forged Qatar Riyal notes around in denominations of 500, 100 and even 50. Difficult to detect the forgery, except with advanced machines. It is possible that forged notes might have been circulated abroad, so I feel it is not safe to purchase QR outside Qatar. Better to bring in equivalent US$ from a reliable source, like a bank or authorized exchange company. Then you are sure you have the genuine stuff.