Avoiding CMS - wages paid elsewhere

[user727385]

My DDs dad is refusing to pay maintenance. He is currently over £3000 in arrears, the CMS have applied for a liability order. He is self employed and getting his wages paid into his dads account (don't get me started on the enabling)
What can the courts do? What can I do? Now I have found out where it is going I will let the CMS know, but I know they cannot take money out of somebody else's account. They have built up a case to prove he is deliberately avoiding paying (4 weekly collect and pay payments came out before he changed his bank details, this is the only payment I have had in a year) I have also heard he is trying to get his mum to open another account he can use.
Has anybody been in this situation? What happened? I'm not expecting to get anything, anything I do get would be a bonus, and ultimately I'm coping ok albeit going without to ensure that DD doesn't. Thanks

I thought they could do like an attachment of earnings - taken out before he's paid so it wouldn't matter which account it went in to

I’d probably let the tax man know too. Just in case.

He's self employed so they won't do that as they know he wouldn't pay it. That's why they went straight to collecting from his bank

Yep contact HMRC that he's doing cash in hand work or fraud as he is declaring he has no income to pay maintenance to CMS yet is lifestyle demonstrates he is still working and earning.

He has declared her is earning, but not paid into his bank account with the sole purpose of avoiding CMS

Well, I should say he is declaring "some" earnings I suspect he earns more