You can now configure restricted goods description in the system, with either a warning or a warning and a supplement charge.
Should you want to create a supplement charge for based on the goods description you should do this in the Control Panel > Retail Tariffs > Supplements
Below is an example of a £5 "Restricted Items" charge which is valid for all customers and not broken down on the invoice
Once the supplement figure is created you can create the rules under Goods Restrictions in the Control Panel
You can set whether the goods will bill a supplement charge or not
Set the destination country or global if it is a global restriction
Finally in the last box you can set the goods description
So the below rule will charge a restricted items charge to Argentina for any job with the goods description containing Poison