A house cleaner stole tens of thousands of dollars from an elderly client in Alexandria, police said Thursday.

Tisa Dorsey, 29, of Greenbelt, Md., was arrested by Alexandria police on Dec. 11. Between May 2012 and August of this year, according to police and court documents, Dorsey stole over 100 checks from her employer and cashed them for $87,415.

Dorsey has been charged under the financial exploitation of a mentally incapacitated person, a law that went into effect this July and is being prosecuted in Alexandria for the first time.

“Previously a crime like this couldn’t be prosecuted because the victims couldn’t testify against their suspects,” said Crystal Nosal, a police spokeswoman. “This is now protecting a whole nother section of our society.”

Dorsey could not immediately be reached for comment.

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