BANGOR (AP) — The trial is under way for a former Chelsea selectwoman charged with 10 counts of defrauding the federal government.

Federal prosecutors said 55-year-old Carole Swan of Chelsea under-reported income on tax returns, made false statements to collect federal workers’ compensation benefits, and defrauded a federal government program by rigging a competition to help her family-owned construction business.

Her husband, Marshall Swan, will be tried separately on one count of aiding and abetting in that alleged fraud.

Carole Swan was initially arrested in February 2011 on charges of trying to extort $20,000 from a contractor in return for giving him town work. She’ll be tried later, in federal court, for three counts of extortion.