Can Child Support Enforcement Go After Your Bank Accounts and Tax Refunds

My question involves child support in the State of: my husband owes back child support for his daughter and received a letter from cs stating that the amount owed would bee taken from his tax return. this letter was received in September of 2013. today December 19 cs used a court order to seize our bank account. it is now frozen and has a negative balance which is more than what is owed to child support. are they allowed to do this after telling him it would come out of his taxes? we live in Ohio and the amount is under $1,000 and he pays cs ever week. it comes out automatically from his check. they haven't contacted him in any way since the letter in September

Yeap - they're allowed to intercept the monies any which way they can.

CS is also one of the very few bodies who can do so without notifying you before they attach your bank account.

(Telling you would be defeating the object a little)

With that said, they often don't bother with either method unless the parent has a less-than-perfect record of paying, or the arrears are just too old.