Joint Custody | Child Custody Laws If you need help with child custody laws regarding any type of joint custody you need an attorney to put the child custody laws to work for you. Child custody laws are used by the judge to make orders which are not always permanent however once a particular joint custody arrangement has been ordered it may be difficult to change. You can change your joint custody arrangement under the California child custody laws if there is a significant change in circumstances. Some form of joint custody is generally preferred but if you have an issue which you feel would justify another arrangement you are entitled to have an attorney argue your case. Typically the judge will implement 50/50 custody in the best interests of the child unless you have circumstances which would justify another arraignment. There is a chance of a different arraignment if there is any type of violence at issue or other matter involving the health, safety or welfare of your child.