[Stage] Teams other than 1 and 5?

[STM1993]

but, wouldn't the criminal be on team 5 and not team 2-4 ( And or independent ) if the criminal frees himself?

That's correct, but here's the thing:
1) Criminals & balls change team when hit.
2) Rudolf's star and Henry's arrow can hit criminals.
3) Random weapon drops are independent, as YinYin said.
4) In LF2, there will always be a random weapon drop if there isn't already a weapon in the game.

Taking advantage of this, what I think you could do is:
1) Spawn a ball in stage mode with a hidden bdy, and a criminal with a separate hidden bdy.
2) All weapons that can be random-dropped are given a hidden itr that can hit the ball's bdy.
3) When the ball is hit, it becomes independent and goes into its hit frame, which is used to spawn a Rudolf star or Henry arrow at a specific frame.
4) This Rudolf star/Henry arrow's special frame has an itr that hits the criminal's hidden bdy, thus turning the criminal independent. You can use this plainly by making the criminal become a free, independent unit... or you can use this now independent criminal as an independent object generator or free other criminals as independent in the same sub-stage.