Nicotine stays in the blood: 1 to 3 days Cotinine (a byproduct) stays: Up to 10 days Since nicotine clears from the blood faster than urine, blood tests are mainly used in medical settings
"In 2015, the State Department cited activity by terrorist groups, and criminal networks who have used tobacco trafficking operations to finance other crimes, including money laundering, bulk cash smuggling, and the trafficking in humans, weapons, drugs, antiquities, diamonds, and counterfeit goods," Sens
Findings from the National Youth Tobacco Survey, a nationally representative survey of middle and high-school students focusing exclusively on tobacco use, indicate that in 2019 one in five high school students (2.95 million) and one in 18 middle school students (0.67 million) currently used a tobacco product
others are working as employees in tobacco companies while the rest are working as cigarette retailers