Magistrates cannot Question CSA?

 Magistrates Court and CSA Assessments
Farley v Secretary of State for Work and Pensions (No 2)
[2006] UKHL 31
HL
28 June 2006
Daily Law Notes Report Summary
House of Lords Judgment
A magistrates' court hearing an application under the Child Support
Act 1991 for a liability order against a non-resident parent in respect
of unpaid child support must proceed on the basis that the maintenance
assessment in question was lawfully and properly made. It had no
jurisdiction to adjudicate on a challenge to the making of the
maintenance assessment.