but just generally, you look at the parts to see if anything does look altered. i didn't notice anything that looked suspicious. >> you are an analyst at fdle? you are not a technical leader or supervisor, is that true? >> yes. >> i'm sorry. you can have a seat again. >> how many times have you testified as an expert for ballistics, 65? >> yes. >> did you tell the jury a safety is so you don't have an accidental shooting? >> the safeties help prevent accidental shootings. >> isn't it true there is no such thing as an accidental shooting? it is called a negligent discharge, isn't that true? >> i don't know. we usually say accidental shooting. i'm okay with the term negligent discharge too. >> you have heard of that in your scientific field, isn't that true? >> actually, i don't recall hearing that term before but i'm sure it is used. >> negligent discharge, meaning