A 12-year veteran of the Fairfax County Police Department was arrested in December for allegedly attempting to take a purse and blouse from a department store, authorities said.

Officer Alexandra Neff, who works in the patrol bureau, allegedly concealed the items without paying for them at Lord & Taylor at the Dulles Town Center, according to the Loudoun County Sheriff’s Office.

Store officials contacted police about the incident around 5 p.m. on Dec. 28,. police said. Neff was charged with petit larceny, which is a misdemeanor.

A Fairfax County police spokesman said Neff has been placed on administrative duties, pending the outcome of an internal investigation. Neff’s attorney said she is not guilty.

“She maintains her innocence and she looks forward to showing that in court,” Edward J. Nuttall said.