BOSTON (CBS) – A 74-year-old professor who has lectured at Boston schools for two decades has been charged with running a methamphetamine lab.

Irina Kristy, who teaches math at Boston University and Suffolk University, will be arraigned next month for allegedly running a meth lab out of her Somerville home.

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Kristy’s son Grigory pleaded not guilty to the same charges last month.

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Kristy has been placed on administrative leave at both Suffolk and Boston University.

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WBZ-TV’s Christina Hager reports