So UTAAC deals with what used to be appeals from SENDIST to the High Court on a point of law.
The Administrative Court is now also transferring some education judicial reviews out of the Administrative Court list to UTAAC.
A few miscellaneous points are worth bearing in mind.
(1) Some search engines do not include judgments by UTAAC – and this is now where some education law will be made. Here is Tribunal service webpage from which you can go to a search engine for UTAAC decisions: https://www.administrativeappeals.tribunals.gov.uk/Decisions/decisions.htm
(2) Upper Tribunal judgments can contain recommendations as to how the first-tier Tribunal carries out its functions, whether or not an error of law has been identified.
(3) Appeals to the High Court from what was SENDIST normally involved SENDIST itself as a respondent. Usually SENDIST took no part, but sometimes it participated, either on points of law or procedure, when it felt a important issue has been raised. The practice in UTAAC (so far) does not, or does not generally, allow for the first-tier Tribunal to take part in such appeals.
This has important implications for evidence supporting appeals. If an appellant says that there was a procedural unfairness, the first-tier Tribunal will not take part to defend the claim. Nor is it likely to provide evidence on the issue. If the appellant says that there was no evidence to support findings on an issue, again the first-tier Tribunal will not take part to explain that there was such evidence. My experience is that it is unlikely to provide notes of evidence to the parties to allow them to make, or refute, such an allegation, though it may be that there is no uniform practice.