A difficulty with the current provisions is that it is often not possible to determine whether an application comes within one of the categories set out in the current section 12(4) until it has been fully investigated. The power on appeal to remit such a case for a second full investigation can lead to duplication of work for the commissioner and possibly for the tribunal if the matter is appealed after a negative recommendation following that second investigation. Far from being an accelerated procedure, it can end up in some cases being protracted and unnecessarily so. What was thought of as a fast-track process for manifestly unfounded claims turned out to be a loop which added considerably to the length of many cases.