the court ruled against the plans in june, but the information wasn t made public until now. in the u.s., prosecutors in the george zimmerman trial presented dna evidence. zimmerman is charged with killing 17-year-old trayvon martin in february. the two got into a fight and he was forced to shoot martin in self-defense. experts it haved no traces of zimmerman s dna was on his sweatshirt or under his fingernails. the comparison of my other standard from trayvon martin to the mixture, i determine trayvon martin was excluded to being part of the mixture. part of exhibit 203, the swab or the dna that you developed from the pistol grip is positive
about the four swabs that were taken from the defendant s gun. the first one i want to talk about is the swab taken from the pistol grip. if you could, using that part of state s exhibit 203, tell us the significance of your findings there. and just describe each part that is shown up there. hopefully the jurors can all see that. it s got an fdle number, right, exhibit number? then you ve got a description of what it is. swab 21-a from pistol grip. is that correct? we. this is basically a summary of the testing i did, the results of that testing and the statistical analysis. over here, this is the number that it got this exhibit got assigned when it came into the fdle laboratory. i usually refer to them as the agency s, the sanford police department s number, which is over here. which would be it was dms-21.
and then there was a mixture. the major was matched the defendant, george zimmerman? yes. and you were able to exclude trayvon martin as having dna on the pistol grip. is that correct? yes. trayvon martin was excluded as being a possible contributor to this mixture on the grip. i want to move next to the second part of the swab from the pistol trigger this time, on the previous exhibit that you examined, did you again perform or try to do the same testing, or tell us what that significance of that fdle exhibit 3 was, sir? the 21-b was a swab collected from the trigger of the pistol. i did not perform the chemical test for blood on that exhibit. the swab itself didn t give me an indication that blood might be present. okay. so this crime lab analyst is walking through these multiple swabs that he took on george zimmerman s gun to see whose dna was where.