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Trusted local news leader for Prescott area communities since 1882
9:59 AM Wed, Jan. 16th

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Brennan Linsley/The Associated PressLara Herzog trims away leaves from pot plants, harvesting the plant’s buds to be sold at a marijuana dispensary.

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Dispensaries turn to Arizona labs to test marijuana purity

PHOENIX (AP) - Hunched over a microscope, Steve Cottrell peered at a bud from a plant that is increasingly used as medicine in Arizona and across the nation.He pointed at a computer screen that glowed with a magnified image of the marijuana bud. The sample, the size of a quarter, was covered with powdery white bumps - a mold that was invisible to the naked eye.