The Sensible Sentencing Trust says a High Court decision to uphold a discharge without conviction in relation to a child porn case is unbelievable.

Police appealed against a Wellington District Court decision to discharge, without conviction, a man over charges relating to child pornography.  The man, an IT specialist, was allegedly found with over two-thousand, four hundred images of child porn.

Child abuse spokesman Scott Guthrie said the decision's not good enough.

"What we have here is a 40 year old male who was found with images of child pornography and his defence was that he enjoys collecting images," he said.

"It's totally unrealistic."