210.Subsection (3) places a duty upon the local authority to apply for an intervention order relating to a particular decision, under circumstances where it appears that an order is necessary but nobody else is applying for one. This means that where an intervention order exists, for example, to sell the adult’s house, the local authority could still apply for an order relating to a welfare decision where they felt that nobody else was going to apply. However, if another party was in the process of applying for an order concerning this welfare decision, the local authority should not apply.