This can be invaluable. When I was a judge sitting in the Employment Appeal Tribunal, it was always helpful to have an ELAAS representative, who helped to focus the issues and often obtained permission to proceed with an appeal which had been refused on the papers.
It helps courts and tribunals to do justice. It can also help the advocate – for example, if they ask for a reference to apply for silk.
I did at every stage of my career, from FRU to when I was a silk. Some of the most interesting work I did was pro bono, for example representing an intervener in the House of Lords.
The case I have mentioned above, which I did when I was in silk: A v Secretary of State for the Home Department (2004), in which the House of Lords made a declaration of incompatibility in respect of Part 4 of the Anti-terrorism, Crime and Security Act 2001, which was emergency legislation following 9/11. I was part of the team instructed by Liberty.