Correct me if I am wrong but if it's child support, what difference does it make??
The money goes from one parent to CS to the second parent, at the end of the day the money is theirs to be used (potentially) to feed, house and clothe the children. If it was centrelink fraud that would be different the money would be coming from tax payers to one parent but the money is basiclly going from one account to another via CS. while the money is in CS account it is gaining interest for the governement to provide the services it funds.

Sjl