Fentanyl is an illegal drug. There is an Analog Acct that makes it so that close analogs to fentanyl are illegal. That was done because people were making analogs and getting away with it.

Drug dealers then went to their lawyers and asked if certain formulations fell under the Analog Act. Their lawyer said no and wrote out how they were legal and didn't fall under the analog act. They sold the drugs and went to prison even though they thought they were in the clear (so good faith should apply, right?).

This is a real case that I have experience with so not sure why I'm being called out as acting in bad faith or making up a ridiculous scenario. This is a real scenario with the people sitting in prison still (for another 5 years).