The Metro Louisville police officer has been suspended for 15 days.
The officer had cited a 7-year-old boy for hitting his truck with a ball.
The youngster was charged with third-degree criminal mischief.
Police Chief Robert White says one of the department's greatest assets is common sense and the officer showed none.
The citation was tossed out of court.
The Courier-Journal reports the officer is appealing his suspension.
