A person duly summoned to attend a justice court as a juror may be punished by the justice of the peace as provided for contempt of court if:
(1) The person fails to attend the justice court as required or fails to give a valid excuse for not attending;
(2) The person fails to give attention to matters before the jury;
(3) The person leaves the court without permission while the court is in session; or
(4) The person without valid excuse otherwise fails to complete required jury service.
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