how was tobacco first used Smoking - Health Risks, Addiction, History Introduction of Tobacco to England

J Environ Radioact 155156:97104

Hair testing is useful to assess long-term exposure to nicotine, especially in situations needing a history of smoking, like in custody cases or forensic investigations, where long-term exposure is relevant

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Cotinine myths You may have encountered an applicant with a positive cotinine result who said things like: Ive never had a cigarette in my life. I was at a concert/bar last night and everyone around me was smoking. I smoked one cigar to celebrate my new grandchild and I have never smoked before. The truth is that those types of explanations do not generally hold true