Legal harassment at our expense

I do a little part-time research for a local lawyer. Most of the research requests have to do with domestic issues such as child support, parenting time (Colorado's term for visitation), etc.

Recently I became aware of government agencies that have been repeatedly coming after a man with limited means--which meant he tried to go lawyerless, but courts are not accommodating places for pro se litigants, so that didn't go well--to try to get years of back child support (that's often a lot of money). Here's the kicker: he was paying child support until the mother of his child disappeared with the child years ago, and he had no way to contact her or the child or even to send child support for the child. The child is now an adult and wants nothing to do with his father. But the father has been sued three times by government agencies for back child support even though the mother concealed his child from him for so many years; he prevailed the first two times, and yet an agency is coming after him yet again. Colorado law has clear case law precedent for excusing that back child support under the equitable principle of "estoppel." I consider it unjust and abhorrent that my tax dollars are going to finance this harassment of a man who has already been a victim of losing his child.