In determining the best interests of the child or children in the context of a separation of the parents, the court may order various investigations to be undertaken by social workers, Family Court Advisors from CAFCASS, psychologists and other forensic experts, to determine the living conditions of the child and his custodial and non-custodial parents. Such issues as the stability of the child's life, links with the community, and stability of the home environment provided by each parent may be considered by a court in deciding the child's residency in custody and visitation proceedings. In English law, section 1(1) Children Act 1989 makes the interests of any child the paramount concern of the court in all proceedings and, having indicated in s1(2) that delay is likely to prejudice the interests of any child, it requires the court to consider the "welfare checklist", i.e. the court must consider: