>> may i have a moment? >> yes, you may. >> in any criminal trial that involves gunfire you have an expert that talks about the mechanics but this goes further. let's listen. >> do you involve yourself to actually look at the injury or flesh wound occurring by bullet entering it? >> no. i do examination of clothing. >> when ever the bullet before it gets to the body is where you stopped? >> correct. >> thank you. no further questions. >> any redirect? >> just briefly.