10-14-2015, 11:10 PM
Customs can seize anything they feel like grabbing. They can take and keep aspirin if they get the notion. There are many cases of herbs, for example which are not illegal or barred under any statute but customs has a policy of taking it. I'm quite sure they would take etiz if they found it. The only difference it makes is they will not prosecute for a legal substance, usually. There are so many regulations they probably could but don't worry. The main risk is losing it.