The Olean Police Department Street Crimes Unit has arrested Shauna N. Covert, 29, formerly of North 13th Street in Olean. She was charged with selling and possessing heroin in the city. Captain Robert Blovsky said the investigation spanned over a one year period. Covert was arrested in Las Vegas last week and extradited to New York where she was arraigned in Cattaraugus County Court. Covert is being held in the Cattaraugus County jail in lieu of $10,000 bail.