Archer

Kalmar falls unconscious, pain seeping through their body. The fight had been hard-fought, but Septimus had won out in the end.

Welcome! I don't know the answer to your question, but this is the best place to find the answers you seek. You could also check out the arcanum for what he's said on the matter (under your links section).

When someone says to you "that's BS!" and your first thought is of Brandon. That was a weird conversation.

*Starts singing* GO GO GRAGDET GOOO-OOOO! GO! GO!... Welcome! That's by far the best new username I've seen all this week

It reminded him of his days working as a DJ.

He then scratched his record. It made a cool noise.

Seconded @Kidpen. (Thirded? Whatever)

There's a good explanation of his powers by Breeze in the scene in Mistborn where there's the the speech to the skaa at the soup kitchen, and Breeze and his Soothers work the crowd. Here's a link for the deleted scene that I found enlightening (I couldn't find the original easily, sorry). https://brandonsanderson.com/mistborn-deleted-scene-7/

The horse bucked him off and went to Arizona, leaving him alone out in front of a dentist's office.

You know what, I second the motion to appeal the ruling. On the grounds of overstepping the court's authority leading to an illegal ruling (the basis of the argument being the judge was not approved by, say, tuba. Therefore, the ruling shouldn't effect tuba.) to be clear, I thought mistspren did a great job, but there was a lot of confusion about what happened so the wrong call was made then relayed. Not necessarily his fault. A death row pardon two minutes too late...

He was given the power by the gb lawyers. So it at least has authority over Gbs and Mac. I suppose if you wanted to formally dispute his authority over other guilds, you could try breaking the rules of the ruling and see how the trial goes for you... The results would be hard to predict. You have a bit of a case. I don't know if it would be enough though. He did mention appeals to a higher court. That's another approach, appealing this ruling to the next level

I'll reiterate that mistspren was agreed upon (as judge) by both sides including the gb representative, thus giving him authority over this trial. Unless you have proof he colluded with a party, or evidence of bias, then you have no reason to dispute his authority @The Forgetful Archivist.