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The small abrasion is too small. i have no opinion. >> would you expect bleeding to occur? >> the blood is inside. >> i'm sorry? >> the blood is in the capillary. that's why we see the red stuff. >> would this be classified as a scratch to the skin? >> yes. >> i apologize. we don't need the light back on. thank you. may i approach the witness? dr. bao, as part of the autopsy did you do what's referred to as finger nail scrapings? >> yes. i didn't do that. >> persons under you? >> yes. >> state's exhibit 191. do you recognize that, sir? >> yes. >> are those the two -- i will

Blood. i was not able to obtain any dna results from that swab. >> sir, i now want to move to some analysis you did of a sweatshirt or hooded sweatshirt. do you recall doing analysis -- and i'm showing you for the record state's exhibit 118, a photograph. do you recall doing analysis on that exhibit, sir? >> yes, i do. >> okay. with the court's permission, may we turn on the lights to show the actual exhibit? thank you, your honor. may the witness step down, yes or no? >> yes, he may. please step down.

Fingernail scrapings from trayvon martin taken at the medical examiner's office? >> i did. >> your honor, may i approach the witness? >> yes, you may. >> sir, i'm going to show you what's been -- thank you, your honor. state's exhibit number 191. i asked you, do you recognize state's exhibit 191, sir? >> i do. the outside packaging has my florida department of law enforcement case number, bar code label, my initials and a date. the two internal packages also have my initials and a date. >> okay. and these are not -- at least when i look at them, they don't appear to be q-tips in terms of a lit...