where parliament's authority to make delegated legislation is laid down. creates the framework of the law and then delegates power to others to make more detailed law in the area.
difficult for parliament to make laws in our local areas, members of parliament do not have localknowledge necessary to understand what laws are needed in each area
parliaments do not have time to make smallchanges to existing laws to update them
if there was a war or national crisis, would be problematic to pass laws using legislationprocess (whole parliament sits) laws may need to be passed quickly