You could lose more than a week's pay.
Washington, D.C., Detective Michael Baylor is accused of drawing his gun during a snowball fight in the nation's capital.
Baylor is fighting a proposed a 10-day suspension.
The police union says Baylor is being persecuted.
A police internal affairs report obtained by the AP says Baylor was "confrontational" during the incident.
A spokeswoman for the department isn't commenting.