How does a court decide who gets custody and physical placement of minor children in Wisconsin?

Wisconsin courts decide legal custody and physical placement based on the "best interests of the child" standard outlined in Wis. Stat. § 767. Statutory factors include each parent's cooperation, the child’s adjustment to home and school, reports from a Guardian ad Litem, and any history of domestic abuse or substance issues. Wisconsin law presumes joint legal custody is in the child's best interest unless evidence shows otherwise.