One of the gabelle's most irritating inventions was the sel du devoir, the salt duty. Every person in the Grande Gabelle over the age of eight was required to purchase seven kilograms (15.4 pounds) of salt each year at a fixed high government price. This was far more salt than could possibly be used, unless it was for making salt fish, sausages, hams, and other salt-cured goods. But using the sel du devoir to make salted products was illegal, and, if caught, the perpetrator would be charged with the crime of faux saunage, salt fraud, which carried severe penalties. Many simple acts were grounds for a charge of faux saunage. In the Camargue, shepherds who let their flocks drink the salty pond water could be charged with avoiding the gabelle.