The Colombo High Court in August had sentenced the officer for a two years rigorous imprisonment and suspended him for ten years over the death of Robert Velinthan in custody in 1998.
The officer was accused of shooting carelessly and murdering handcuffed Velinthan in Point Pedro town in Jaffna district as he was trying to flee the army's custody.
The money was collected on his behalf by the Joint Opposition backers of former President Mahinda Rajapaksa.