All right. Let the record reflect that we've got all of our jurors back. All right. Mr. Scheck.
Mr. Yamauchi, do you have a problem with outbreaks of contamination at the LAPD laboratory?
Once again, because I saw it talked about in this case, I remember it from that. But prior to that, it wouldn't come to my recollection.
In the course of DNA typing at your laboratory from the moment you started through the time that you did testing in this case, have there been incidents where you as laboratory analysts discovered what you considered to be contamination problems?
Was there an incident involving lots or reagents concerning amplification run no. 33 that caused you to consult with the manufacturer about the kits that you'd been given?
All right. Was there an incident involving contamination which yourself, Erin Riley and others in your laboratory believed came from kits or reagents that you received from Roche?
Do you have any recollection of contamination occurring in your laboratory which you believed was caused by kits you received from Roche?
Have you ever--withdrawn. Was there ever an incident of contamination in your laboratory which the people at the DNA unit believed came from the kits supplied by Roche?
All right. Was there ever an incident in your laboratory involving contamination from kits?
From kits specifically? We--we couldn't prove that or it couldn't be isolated down to actually being there, but it was put into a category where something to do with the reagents at that end were giving an anomalous result.
Well, first of all, you're saying "Problem," and it's not necessarily a problem. What it is is, we have these controls like I was explaining before, and they're the indicators to us that something is a little bit different or out of the ordinary. And that indicator, by looking at our controls, we were able to figure out that something anomalous was taking place, and we isolated it to a specific area. As to whoever followed up on that and the responsibility of that, it was Mr. Matheson and Miss Riley.
The anomalous results that you were talking about were contamination appearing in the negative controls on certain items?
And as a result of the contamination in the negative controls--you examined some of these strips yourself; did you not?
All right. And you tried to make a determination when you examined them as to whether or not there was contamination in the laboratory?
That--well, yes. We would have to discover that, whether or not it's something to do with our handling process or some other area. There's ways of troubleshooting that.
Were you informed about all the other steps that were taken to investigate the contamination?
What were the conclusions that were reached as a result of this investigation of the contamination?
Were you--did you subsequently operate on the premise that this contamination incident that you've just described was limited to just a series of bad lots in kits that you received from Roche?
To your knowledge, did Roche--has anybody--did Roche indicate that any other laboratory had had problems with those kits?
The--could you describe for us what the validation samples are that you test on an--withdrawn. Do you test validation samples on an ongoing basis in your laboratory?
Do you on an on-going basis test known samples in your laboratory to see if you're getting correct results?
Beyond that, do you have a program in your laboratory where you take known blood samples, that is from people in the lab and others, and on an on-going basis, periodic basis, have analysts perform tests on those known standards?
No. Nothing like that. But we do do the proficiency tests on a rather regular basis.
As far--have you reviewed hybridization strips and validation studies and casework from your laboratory from 1993 forward, you personally?
All right. As far as you know, from all the sheets you've seen, do you have a contamination problem at the LAPD laboratory?
Not a problem, but we see contaminants showing up, and that was an instance where such an anomaly showed up. And it's not outside of the ordinary from any other lab. That's why we have these controls set up within these systems to indicate to us that there's something there or possibly not there.
KEY QUOTENow, you just said that it wasn't any different from problems with other labs. How much familiarity do you have with work of other laboratories with respect to issues of contamination?
Well, I've talked to Mark Taylor and the people at Roche. That's why they have these controls set up within there, to indicate if anomalies occur where there's something to look at and consider.
Your Honor, may we move now to the socks? And what I would request is that we put out some paper, the witness put on some gloves and that we put the socks out pretty much in the same area that we had them before when we conducted the direct examination.
Do you have a board or something you want to use, Mr. Scheck? And, Mrs. Robertson, do we have some paper?
Yes. Actually--may I suggest that we follow the same procedure we did before by putting--
--- I guess the white paper on top of the cart, having the witness come down and remove the socks. And I'll put up the sock board, Prosecution sock board.
Do we have any size large gloves? Mr. Scheck, we have one minor problem here. We don't have the right size gloves. All right. Let's proceed to something else.
Deputy Magnera indicates they have some large ones available. He'll make a phone call.
Now, on June 14th, did you see the socks, item no. 13, that were recovered from Mr. Simpson's bedroom?
To your knowledge, on June 14th or 15th or at any time prior to August 4th, was a photograph taken of the socks?
When I say a photograph, I'm referring now to photographs other than those that were taken before it was collected. Are we--do we understand each other?
All right. Now, do you recall a visit by Dr. Michael Badin and Dr. Barbara Wolf to the LAPD lab in June of 1994?
Do you know of such a visit by Defense experts Badin and Wolf in June? Were you present for that?
All right. And when Dr. Badin and Dr. Wolf visited the LAPD lab, did you have occasion to view the socks in preparation for that visit?
Well, actually what I'm asking you is, do you recall seeing them in preparation for the visit or during the visit of Dr. Badin and Dr. Wolf?
I'm not sure. I didn't take notes that day and I don't have independent recollection using your own terminology.
And Dr. Badin and Dr. Wolf to the best of your knowledge were not allowed to handle and examine them? Is that your understanding and your recollection?
I recall them asking to--to see certain items and then asking if they could look at them with magnifying glasses and stuff, and basically we were obliging them.
I can't recall specifically. I didn't take notes and my--Michele Kestler was taking notes.
Now, on June 29th, you--well, actually now that he's outfitted with the gloves, maybe we should--
Could you please come down here, Mr. Yamauchi, and if you would open the envelopes, remove the socks and lay them out.
Just got done opening the first plastic bag. The second plastic bag's already been cut. Removing a white envelope. Removing a brown paper bag from the white envelope. Removing a white envelope from the brown paper bag.
Removing one sock, removing the other sock from the white paper envelope. Laying the socks out.
Your Honor, maybe--okay. Your Honor, could we just turn the paper around so the socks are closest to the jury?
Yes. Now, on June 29th, you were part of an analysis of the evidence in this case that was being conducted by yourself, Mr. Matheson and Michelle Kestler.
On June 29th, did you have occasion to review various items of evidence in this case?
And you were the one who was actually taking the various items of evidence out and displaying them for the group?
And the purpose of this examination of each item of evidence was to make an assessment as to what kinds of serological or DNA tests should be performed on the various items of evidence?
I move to strike. I asked him a specific question. I did not ask for an overall explanation. I move to strike.
All right. Did you go through the items of evidence collected up to that time one by one?
I'm not aware of--well, yes, we looked at them one by one, but I'm not aware of what all evidence items were looked at. I was--I was along there to assist in the way that I'm trained.
Well, let me show you--are you familiar with a handwritten summary that was made of this review on June 29th?
Can I mark this Defendant's next in order, your Honor, document that I think previously we referred to as exhibit K.
Now, 1190 appears to you to be the sheet that Mr. Matheson was filling out with respect to the various items of evidence that the three of you were reviewing?
Okay. And in the course of this review on January 29th, you actually measured centimeters the Bundy swatches?
You took out a ruler and you didn't even touch the swatches. You just got near them and made your best measurements?
All right. Mr. Yamauchi, you've going to have to keep your voice up for the court reporter.
And there came a--and were you reviewing these items on white pieces of lab paper in Miss Kestler's office?
Yes. We had bench stoke, which is--it's like a paper with a kind of a waterproof seal on the back.
Yes, unless we were looking at swatches which have their bindles underneath them, not allowing them to touch the table.
All right. I'm showing the witness page 2 of 1190. Does that refresh your recollection?
There's a sock that is now closest to the jury, and by the heel, there appears to be a no. 13 on it. Do you see that, sir?
All right. Now, let me just ask you to come to the board with me, which is 262-A, and I ask you to look at what's being depicted as sock A.
And would you agree that in that photograph of sock A, there appears the same no. 13 that we see on the sock closest to the jury?
All right. Can we agree to call this sock with the no. 13 on the heel sock A? All right? For purposes of making this record.
Do you know of any notation being made by yourself or anyone else on June 29th of seeing a reddish stain in the position of the cut-out on sock A?
Were notations being made of the observations of yourself, Mr. Matheson, Miss Kestler on June 29th as you examined items of evidence?
Were you making observations, comments on the items of evidence you were reviewing on June 29th?
Did you or anyone else in that room on June 29th observe a reddish stain in the position of the cut-out on sock A?
In terms of your observations, did you see a reddish stain in the area of the cut-out on sock A?
No. I've never seen a reddish stain. The only observation I've ever made pertaining to a stain was some discoloration.
All right. Did you see a reddish discoloration in the area of the cut-out on June 29th on sock A?
Did you see in the area of the cut-out on sock a the material of the sock being crinkled and puckered?
I can't remember that--well, that much detail. But what I do remember, with a cursory observation, look at, you couldn't notice any stains on that particular item. We didn't really look at it in detail at that time because we were just generating notes, and I guess they needed it for some type of a game plan as to how to handle this evidence.
So the answer to my question with respect to whether you saw the material in the area of the cut-out on sock a as being crinkled and puckered on June 29th, the answer is no?
Was there any discussion among you and Mr. Matheson and Miss Kestler as to whether the socks came from Mr. Simpson's bedroom?
Was it your state of mind on June 29th that these socks were a particularly important piece of evidence?
I don't remember that clearly. But all the items of evidence that we were looking at, I didn't know the history behind each and every one of them. I don't know when I heard that that was from his house or where they collected it from or anything like that.
You just said I believe that you're sure that the examination of these socks was cursory. Were those your words?
Do you have an independent recollection that the examination of these socks, a white piece of paper, Michele Kestler's office with you and Mr. Matheson, Michele Kestler is cursory?
That's right. We looked at everything quickly. We didn't take time to take a very detailed examination of the evidence items.
KEY QUOTEThere was a purpose behind that and they had their reasons for wanting to do that.
Your purpose in reviewing each of these items was to make a determination as to what kind of further serological or DNA testing should be performed?
I think the key word's "Potential," what potential types of testing could be performed. It wasn't meant to hard and fast draw the line here and say, "We're sending this here and that there." But we needed some kind of idea or, you know, they did. They're the ones that make the decisions in that sort of area.
Mr. Scheck, do you need him there at that location? Because the court reporter is having great difficulty with his back turned toward her.
Well, perhaps--maybe if we face--if he faces this way and I stand over here, that might be better.
In order to determine the potential for testing, you have to make observations about the amount of blood on an item?
In the course of determining the potential for testing, is it not important to make observations about blood on the various items of evidence?
Well, if it's not patently obvious, in other words, if you can't--it doesn't jump right out at you, then there's not much we can do about it. At that stage, we just wanted to take a look at it and say, "Wow, there's blood here, okay. Then looks like there's enough potentially to do RFLP." But if it's not obvious in such a quick look, then we couldn't make that determination.
Well, wasn't one of the determinations that you were assisting in making is what kind of future testing could be performed on the various evidence items?
Yes. I--excuse me. I stated that already. We were looking at these things to see whether they had potential for RFLP or PCR and serological testing, conventional serological testing. So we had to take a quick run through and look at them and assess them. They--that was by no means--at least indicated to me by Michele and Greg going to be a final analysis by any stretch.
Well, you were trying to determine whether you could perform conventional serology, RFLP, PCR or all of them on a particular item, right?
And you were also trying to determine whether you could perform all of those tests and still have some left over to give to the Defense?
And in order to determine if you could do an RFLP test, a PCR test and a conventional serology test on sock A, don't you have to examine it to determine how much blood is on it if any?
Once again, I was under the understanding that we were there to do what we could by just looking at the items. Further testing to be sure whether or not there's blood on it would have to be done and tested with something like that phenolphthalein test that I explained earlier. That was not a part or an intention of that particular meeting. At least, that's not what was conveyed to me.
In other words, you were taking out these evidence items and looking at them to determine whether you could perform conventional serology, RFLP and PCR, but you weren't taking any particular care to look at the item to see if there was blood on it. Is that what you're saying?
Mr. Yamauchi, after you, Michele Kestler and Mr. Matheson put that sock out--put those socks out on white paper, looked at them, did you not conclude that you had done a blood search and none--no blood was observed?
Did you not conclude after your examination of the socks there was no blood on them?
No. Not definitively. If you add in visual observation, that probably would be okay. But we didn't do any chemical test to show that for sure there's no indication of blood there.
KEY QUOTESo from your visual observation and examination of the socks, you saw no blood on either of them?
And after you I guess--did there come a point in time when you wrapped up the socks and you put them back I guess at that point in the brown paper bag?
Yeah. At a certain point, we would have concluded and have to put everything away.
I would have put it back as I had found it when I took it out. I can't remember exactly which way that was.
When you found it on June 29th, were both socks just in that--excuse me--brown paper bag?
And to your knowledge, have any of the cuts in either of those socks been made by Defense experts?
Do--when you put the socks found back in the--in its packaging on June 29th, did you see any reddish powder of any kind on the white piece of paper?
I didn't see anything that appeared to be blood at that time.
That's right. We looked at everything quickly. We didn't take time to take a very detailed examination of the evidence items.
Not a problem, but we see contaminants showing up, and that was an instance where such an anomaly showed up. And it's not outside of the ordinary from any other lab.
No. Not definitively. If you add in visual observation, that probably would be okay. But we didn't do any chemical test to show that for sure there's no indication of blood there.
This is it? My golly, let's find some gloves.