Cross-examination of Dennis Fung

📄 Cross-examination of Dennis Fung — Wednesday, July 6, 1994

Address:

C:\DEPT103\PRELIMINARY\1994\JUL\6\CROSS-EXAMINATION-OF-DENNIS-FU.DOC

TRIAL

▲ Day 4 of 6

◀ Direct examination of Dennis Fung Redirect examination of Dennis Fung ▶

Witness: Dennis Fung
Examiner: Marcia Clark
Called by: Defense • Date: Wednesday, July 6, 1994 • Lines: 22

Marcia Clark questioned criminalist Dennis Fung about presumptive blood testing he performed at 360 Rockingham Avenue on June 13, 1994. Fung said tests on the white Ford Bronco, driveway drops, and a glove found on the property's south side all indicated the presence of blood, and that he reported the results to Detective Vannatter.

# 1

CROSS-EXAMINATION

# 2

BY MS. CLARK:

# 3 Q:

Mr. Fung, what test did you perform on the bloodstains at 360 Rockingham avenue?

# 4 A:

I performed a presumptive test for blood using the reagents phenolphthalein and hydrogen peroxide.

KEY QUOTE

# 5 Q:

And what, if any, result does that test give you with respect to stains that may or may not be blood?

# 6 A:

That test is a presumptive test, meaning that it can eliminate a suspected stain of being blood; and it is a good indication, if it is positive, that the stain is blood.

KEY QUOTE

# 7 Q:

And did you perform such tests at the request of detective Vannatter at 360 Rockingham on the morning of June 13, 1994?

# 8 A:

Yes, I did.

# 9 Q:

Did you do so with respect to a white ford bronco located there?

# 10 A:

Yes.

# 11 Q:

And with respect to blood drops on a driveway located there?

# 12 A:

Yes.

# 13 Q:

And with respect to a glove found at the south side of the property there?

# 14 A:

Yes.

# 15 Q:

And your results were?

# 16 A:

Those tests came back indicating the presence of blood.

KEY QUOTE

# 17 Q:

Positive for blood?

# 18 A:

Yes.

# 19 Q:

And did you indicate those results to detective Vannatter?

KEY QUOTE

# 20 A:

Yes, I did.

# 21 MS. CLARK:

I have nothing further.

# 22 THE COURT:

Mr. Uelmen.

Temperature

routine

Key Quotes (4)

Dennis Fung

I performed a presumptive test for blood using the reagents phenolphthalein and hydrogen peroxide.

Fung identified the forensic method he used to examine the stains at Rockingham.

Dennis Fung

That test is a presumptive test, meaning that it can eliminate a suspected stain of being blood; and it is a good indication, if it is positive, that the stain is blood.

He explained both the test's purpose and its limited, presumptive nature.

Dennis Fung

Those tests came back indicating the presence of blood.

Fung testified that the stains associated with the Bronco, driveway, and glove all yielded positive indications for blood.

Marcia Clark

And did you indicate those results to detective Vannatter?

Clark established that Fung promptly communicated the test results to the investigating detective.

Evidence (3)

Informal

A white Ford Bronco at 360 Rockingham Avenue on which Fung performed presumptive blood tests.

discussed and identified as testing positive for blood

Informal

Blood drops found on the driveway at 360 Rockingham Avenue and tested by Fung.

discussed and identified as testing positive for blood

Informal

A glove found on the south side of the Rockingham property and subjected to presumptive blood testing.

discussed and identified as testing positive for blood

Notable Exchanges (2)

Marcia Clark•Dennis Fung

Clark methodically established that Fung performed presumptive blood tests at Detective Vannatter's request on the Bronco, driveway drops, and glove, and that all produced positive indications.

routine

Marcia Clark•Dennis Fung

Fung clarified that the chemical test can exclude a stain as blood but that a positive result is only a strong indication, not a definitive identification.

revealing

Objections

None recorded

Proceeding 9132 • 22 lines • Defense witness

Preliminary Trial

Department 103