Consider which source of law (case law or statute law) apply in each of the following scenarios:

David is asking the court to prevent his former wife from taking their children on a holiday to visit her parents in America, as he fears they may not return. An (imaginary) decision by the Supreme Court suggests that he could only prevent the visit if there was prior evidence of an attempt to remove them. However, an (imaginary) Act of Parliament says that if there are "reasonable grounds" to believe they may not return, such visits should not be permitted.

An ancient right of way allows passers-by to take a short cut across Erin's land. A recent (imaginary) decision by the Supreme Court has found that rights of way may be closed off if a suitable alternative route is offered. Erin wants to know if the decision applies to her