Following a hearing, Kumara was sentenced to death for heroin possession.
Prison officers have been barred from having personal meetings with him.
However, a top officer has gone to his cell and had a secret discussion few days ago.
The prison audit division is investigating a top officer who has had a closed door meeting with Samantha Kumara alias Wele Suda who is being kept separately under tight security.
Following a hearing, Kumara was sentenced to death for heroin possession.
Prison officers have been barred from having personal meetings with him.
However, a top officer has gone to his cell and had a secret discussion few days ago.
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