Try legal aid in your area and if you have a court order in place regarding such child support, you can contact the court to arrange a hearing regarding this issue.  At some point, the court will begin proceedings to garnish his wages.  Make sure you figure out and can prove how much he is behind (in arrears). Try the following:1. Try http://www.ksbar.org/public/public_resources/lawyer_referral/2. Try http://www.volunteersolutions.org/uwgt/org/224080.html3. http://www.kscourts.org/Rules-procedures-forms/Child-support-guidelines/default.asp4. http://www.kscourts.org/kansas-courts/district-courts/default.asp