Leftwich and Duff (Child support)

This matter concerned an appeal by the applicant, Leftwich, against a decision of the Child Support Registrar concerning the percentage of care for the parties' child. The dispute arose from a change in the likely pattern of care for the child, which led to the revocation of existing percentage of care determinations and the making of new ones. The court was asked to consider whether the Registrar's decision was affected by error.

The primary legal issue before the court was whether the Registrar had erred in determining the percentage of care for the child, specifically in relation to whether there had been a change to the likely pattern of care. This involved an assessment of the evidence presented regarding the actual care arrangements and the Registrar's application of the relevant provisions of the *Child Support (Registration and Collection) Act 1988* (Cth).

The court found that the Registrar had made an error in the assessment of the change in the likely pattern of care. It was determined that the Registrar had not properly considered the evidence before them, leading to an incorrect conclusion regarding the percentage of care. Consequently, the court set aside the Registrar's decision and substituted its own determination of the percentage of care.