https://www.slab.org.uk/guidance/prospects-of-success/
We have to assess the prospects for success in applications. To do this you need to give us full information about your client’s case and their position in it.
We have separate guidance on the most common types of applications to let you know what information we need to assess prospects of success.
You need to give your view on the prospects and the reasons for reaching this view. We will consider this as part of our overall assessment of the application.
You also need to give a numerical rating for prospects and say whether prospects are “excellent”, “good”, “fair” or “poor”. The numerical scale is from “1” to “10” with “1” meaning the prospects are almost non-existent and “10” meaning the case is certain to be successful.