1	BLOOD IMPRESSION EVIDENCE AT CRIME SCENES
2	PRESENTED BY JOHN D. “DUSTY” CLARK
3	BLOOD IMPRESSIONS AT CRIME SCENES VISUALIZE VISIBLE LIGHT INFRARED CHEMICAL REAGENTS ENHANCE PHOTOGRAPHIC AND DIGITAL IMAGING INFRARED CHEMICAL REAGENTS ANALYZE EFFECTS OF REAGENTS ON DNA
4	IMPRESSION EVIDENCE IS CIRCUMSTANTIAL THERE IS NO METHOD TO EXACTLY DATE AN IMPRESSION THE PERTINENCE OF THE IMPRESSION IS DETERMINED BY HOW IT RELATES TO THE CRIME SCENE DEFENSE STRATEGY - EXPLAIN AWAY THE IMPRESSION BY INNOCENT PRIOR CONTACT, PRIOR CRIME, ETC.
5	BLOOD IMPRESSIONS FINGERPRINTS - WHO MADE THEM IMPRESSIONS - WHAT MADE THEM WHOSE BLOOD - DNA WHEN WERE THEY MADE ? ……. WHEN THE VICTIM/SUSPECT WAS BLEEDING ESTABLISHES A VERY SPECIFIC TIME FRAME, WHICH NEARLY MAKES THE IMPRESSION DIRECT EVIDENCE
6	VISUALIZATION SUFFICIENT LIGHT AND MAGNIFICATION SUFFICIENT DEPOSITION OF BLOOD TO VISUALIZE CHEMICAL APPLICATIONS - LUMINOL, FLUORESCENE, ETC.
7	PROBLEMS WITH WHOLESALE CHEMICAL APPLICATIONS TOXICITY OF THE REAGENT EXPOSURE - PROCESSING PERSON AND CRIME SCENE PERSONNEL RESIDUALS - HOW LONG DO THEY PERSIST AND HOW ARE THEY METABOLIZED (PRESENT AND FUTURE RESIDENTS), VICARIOUS LIABILITY TO YOUR DEPARTMENT, TOXIC CLEAN-UP
8	INFRARED IMAGING RECORDING THE DIFFERENCES BETWEEN THE ABSORBSION OF THE IMPRESSION AND THE REFLECTION/TRANSMISSION OF THE SUBSTRATE INFRARED ENERGY DOES NOT DAMAGE DNA
9	BENEFITS OF INFRARED IMAGING A LIVE TIME AID TO VISUALIZE BLOOD AND OTHER TRACE EVIDENCE IT ALLOWS YOU TO SEE AREAS OF INTEREST TO SAMPLE IT LESSENS THE DANGERS OF WHOLESALE REAGENT APPLICATION ACCOMPLISHED WITH VIDEO OR DIGITAL CAMERA EXAMINATION
10	LIMITATIONS OF VIDEO AND DIGITAL CAMERAS LOW COST DIGITAL CAMERAS AND ALL NON INFRARED VIDEO CAMERAS HAVE A STANDARD HOT MIRROR FILTER THAT BLOCKS INFRARED WAVELENGTHS FROM STRIKING THE CCD CHIP ALL CCD CHIPS WILL RECORD INFRARED OLD VIDEO CAMERAS CAN BE CONVERTED TO IR BY REMOVING THE FILTER
11	INFRARED EXAMINATION IN DARKNESS IN LIGHTED AREA NO FILTER OVER LENS IR FILTER (Kodak #87) OVER A LIGHT SOURCE HIGH IN IR WAVELENGTH(TUNGSTEN/INCANDESCENT BULB) IR GENERATOR IR FILTER OVER LENS (Kodak #87) A LIGHT SOURCE HIGH IN IR WAVELENGTH
12	OCTOBER 1994 - “HOW CAN THE BLOOD ON OJ’S SOCKS BE RECORDED SO THE JURY CAN SEE IT ?” LETS LOOK AT THE TESTS AND TARGETS THAT I UTILIZED IN DETERMINING THE USEFULNESS OF INFRARED IMAGING FOR THE DETECTION OF BLOOD
13	OCTOBER 1994 - “HOW CAN THE BLOOD ON OJ’S SOCKS BE RECORDED SO THE JURY CAN SEE IT ?” REFLECTIVE INFRARED TEST OF BLOODY SHOE PRINTS ON DARK SURFACES
14	OCTOBER 1994 - “HOW CAN THE BLOOD ON OJ’S SOCKS BE RECORDED SO THE JURY CAN SEE IT ?” TRANSMITTED INFRARED TEST OF BLOOD STAIN ON PANT LEG
15	OCTOBER 1994 - “HOW CAN THE BLOOD ON OJ’S SOCKS BE RECORDED SO THE JURY CAN SEE IT ?” REFLECTIVE INFRARED VIDEO OF BLOOD ON THE PAIR OF BLACK SOCKS As seen on Court TV coverage