Lacey Act 1900
With the arising issue of illegally traded, transported, and sold plants, fish, and wildlife, came the Lacy Act in the 1900's. It originally started out by making it illegal to poach in one state with intent to sell the bounty in a different one. Illegally captured animals were not allowed to be brought across state lines due to the potential problems of introducing nonnative species. Although nowadays, it's more so used as a prevention to the spreading of potentially dangerous nonnative invasive species.