Arlington police Chief Will Johnson on Thursday afternoon announced the firing of Officer Thomas Kantzos. He'd been with the force since 1995.
Johnson also expanded random drug testing to all police employees amid the federal investigation. Such testing previously only applied to undercover police and officers seeking promotions.
Kantzos was arrested Tuesday and charged with exceeding authorized access to a protected computer.
Investigators say Kantzos, who's free on bond, used police databases to slip information to an alleged dealer and helped arrange steroids sales to other officers. The drug suspect was arrested in January and became an FBI witness.
Another implicated officer committed suicide Tuesday.
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