It was not treason, according to spanish law. The sentence is public (about 500 pages), if you can read spanish. Otherwise, an independent english reporter base

It was not treason, according to spanish law. The sentence is public (about 500 pages), if you can read spanish. Otherwise, an independent english reporter based in Spain, Matthew Bennet, has given very thorough coverage of it through twitter in english, for international followers. He uses Patreon if you are interested in his work.