Well, there's a couple threads on this topic. Mine has zero responses.
Anyway, there is about 15 to 25 feet between you and the defendant in a courtroom. Sometimes, there is a fence/half-wall thingy.
You are behind the prosecuting side's table or area for people who want to watch. The defendant is sitting in a table with his attorney. There will be at least one deputy nearby if not two. If you've been in court before or watch courtroom shows, you know there's a defendant side and a prosecuting side in the courtroom, but every courtroom layout isn't the same.
How to successfully attack a defendant in a courtroom.
1. You need to be warmed up physically. Loosen up your muscles.
2. You need to wear proper footwear and clothing. Loose fitting clothes and athletic footwear to get a grip. Not dress shoes or boots.
3. Watch the deputies so that they are not focused on you. This is paramount.
4. Edge your body so you don't have to move around a table or chair before the launch. But, be casual about it.
5. When the deputies are distracted looking elsewhere, sprint. You can learn how to start your sprint from youtube or books on sprint starts. I'm talking about the 100 and 200 meter races. Arm speed must match leg speed. You launch just right, you will close up that 15 to 25 foot gap within 2 seconds.
Dig deep after your first two steps.
6. Know where you are going to hit the defendant. You have a very small window of time before a deputy pulls you away. Neck, face, eyes, throat. Defendant will be cuffed so you have the edge.
Good luck.