Question to the Department for Work and Pensions:

To ask the Secretary of State for Work and Pensions, what record is made of (a) whom and (b) which Department has supplied information during the assessment of (i) Child Support Agency and (ii) Child Maintenance Service payments.

The initial Child maintenance calculation is based on gross annual income from HMRC, benefit information from CIS, the number of qualifying children, number of relevant other child/ren (ROCs), number of children in family based arrangements (CIFBA), variation information and shared care from the applicant. This can be supplemented by addition information from the applicant and from local authorities. This information is routinely recorded in the Child Maintenance systems, but could only be sourced by examining individual cases