Ward's house was then searched and resulted in the discovery of up to a thousand images of children being sexually abused; as well as movies depicting the sexual exploitation of youngsters.
The material has since been destroyed.
Internal Affairs spokesman Steve O'Brien said people involved in the making and distribution of such material would eventually be caught.
"People who collect child sex abuse images create a market for more abuse.
"Trading or viewing these images is not passive offending because it condones the abuse children suffer and encourages those who actually photograph them. If you deal in or possess this material, you can expect to get caught."