Police said in a news release that charges of deceit, discreditable conduct and insubordination against Lori Lamb were proven in a disciplinary hearing in December.
She was also found guilty of providing false information in an information to obtain a search warrant, and to professional standards branch investigators during the internal investigation.
Lamb was a 15-year member of the force.
The disciplinary hearing began in October and Lamb was assigned to administrative duties during the process.
Police did not give details about what Lamb did.
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