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Previously, business practices like these could be challenged legally by claiming a corporation had exceeded state incorporation laws as expressed in its chartercalled an ultra vires (beyond the powers) complaint

"Reading advertisements in a colonial/development context: Cigarette advertising and identity politics in Egypt, c1919-1939." Journal of social history 39.2 (2005): 483-503

This is done by allowing the tobacco leaves to sit in a controlled environment for a specific amount of time, typically around several hours to a few days

5 Other studies and expert opinions And its not just this one study

I was pleasantly surprised to find that it was not the case