The most common reason to change jurisdiction in a child custody case is relocation. For example, if a child lived in Hamilton County at the time of the original child custody court order but then the custodial parent moves them to another state and has been in the other state for at least six months, it would make sense to transfer the case to that new state. However, in order for a parent to relocate their child and make a jurisdictional change, they must first seek approval from the other parent and the court.