If no such law exists then the custody order granted by a Canadian court may provide strong and persuasive evidence for your case. (childabductionlaw.ca)
It also should be pointed out that fathers with joint legal custody as a group also have court orders granting them more visitation time. (thelizlibrary.org)
She may enter a temporary order granting custody to one parent based on the facts of the emergency. (info.legalzoom.com)