Adding: Someone asked me what this is.
It's a motion to intervene. https://www.law.cornell.edu/wex/intervene#:~:text=The%20nonparty%20who%20intervenes%20in,the%20relevant%20claims%20or%20defenses.
I have never seen one in a criminal case. (Has anyone else?)
So this might not even be a thing.
I mean other than a crazy thing.