Nearly all of my clients ask me at some point if we can use an Article 11.07 writ to get a reduced sentence.
The short answer is no. The writ is used to collaterally attack a prison sentence. It is an “all or nothing” fight where I try to find a cognizable ground for relief that was so prejudicial to my client that the only remedy is a new trial. There’s no procedural way to ask for less time on the sentence my client has already received. Judgments are final unless reversed, full stop.
But that’s not the whole story.