Ppt on blood stain pattern analysis lab

1 FORENSIC SCIENCE Serology. 2 What is Serology? Serology is the study of serums such as blood, saliva, semen and sweat. A forensic serologist applies.

blood. A third option is luminol. 3. Luminol reacts with blood to produce light instead of color. Luminol detects blood even if the area has been cleaned. 9 It is blood, but is it human blood? At the lab, the technician will need to determine if the blood/Pattern Terminal Velocity Directionality Angle of Impact 37 Blood Stain Patterns The shape of a blood stain: l Round--if it falls straight down at a 90 degree angle. l Elliptical--Blood/ the medical examination for laboratory analysis: HAIR (both pubic and /


Forensic Science Lab Activity T. Trimpe 2006 Warning: Some material in this presentation and related videos may be too graphic.

any illuminated areas after stain is sprayed Stains appear greenish- white if blood is present. Detecting Blood Evidence Leuco Crystal Violet or LCV chemical process that is used for blood enhancement helps to make the blood evidence more visible so it can be photographed and analyzed. Detecting Blood Evidence Video Clip Click picture for video Blood Stain Pattern Analysis The bloodstain patterns left by falling, projected or smeared blood can be analyzed by/


BLOODSTAIN PATTERN ANALYSIS. The success or failure of any criminal investigation often depends on the recognition of physical evidence left at a crime.

) The size, shape, and number of resulting stains will depend, primarily, on the amount of force utilized to strike the blood source. Arterial Spurt / Gush Bloodstain pattern(s) resulting from blood exiting the body under pressure from a breached artery: Cast-off Stains Blood released or thrown from a blood- bearing object in motion Impact Spatter Blood stain patterns created when a blood source receives a blow or force resulting in/


The study of antigen-antibody reactions. The Nature of Blood-1 Blood is a complex mixture of: Cells Enzymes Proteins Fluid Portion is called Mostly water.

Patterns-1 Useful in reconstructing the events that produce bleeding. Analysis of bloodstain patterns is extremely complex. Interpretation of bloodstain patterns /stain for a control. In the lab seminal stains are linked to a donor using DNA typing. Collection of Rape Evidence-3 Physical evidence that MUST be collected: Pubic combings Pubic hair standard/reference samples External genital dry-skin areas Vaginal swabs and smear Cervix swabs Rectal swabs and smear Oral swabs and smear Head hairs Blood/


Forensic Science Lab Activity. What does the abbreviation BPA represent? Bloodstain Pattern Analysis What can an investigator learn from the analysis.

Forensic Science Lab Activity What does the abbreviation BPA represent? Bloodstain Pattern Analysis What can an investigator learn from the analysis of a blood spatter?  Type and velocity of /stain that radiate out from the spatter; can help determine the direction from which the blood traveled. Passive Bloodstains –Patterns created from the force of gravity –Drop, series of drops, flow patterns, blood pools, etc. Projected Bloodstains –Patterns that occur when a force is applied to the source of the blood/


1 Immunofluorescence Lab. 10. 2 Immunofluorescence If antibody molecules are tagged with a fluorescent dye, immune complexes containing these fluorescently.

Lab/Patterns of ANA diffuse staining speckled pattern nucleolar pattern Peripheral pattern 23 Flow Cytometer The fluorescent antibody techniques described are extremely valuable qualitative tools, but they do not give quantitative data. This shortcoming was remedied by development of the flow cytometer, which was designed to automate the analysis and separation of cells stained/ three different fluorescent antibodies. For example, if a blood sample is reacted with a fluorescein-tagged antibody specific for/


Chapter 10 Blood “Out damned spot! Out, I say Here’s the smell of the blood still, All the perfumes of Arabia will not Sweeten this little hand. Oh, Oh,

will be able to:  Determine whether a stain is blood..  Determine the blood type of a simulated bloodstain using the ABO/Rh system.  Explore bloodstain patterns as a function of velocity, direction, and height of fall.  Use technology and mathematics to improve investigations and communications. Chapter 10Kendall/Hunt Publishing Company3 Serology Serology is the examination and analysis of body fluids. A forensic serologist may analyze/


Forensic Science Lab Activity

Lab Activity Warning: Some material in this presentation and related videos may be too graphic for some people. T. Trimpe 2006 http://sciencespot.net/ How does a blood droplet form? Click the image for an animation. What does the abbreviation BPA represent? Bloodstain Pattern Analysis What can an investigator learn from the analysis of a blood/chemical is also capable of detecting latent or old blood, similar to luminol. It is ideal for fine stains or smears found throughout a crime scene. After the solution/


Chapter 10 Blood “Out damned spot! Out, I say Here’s the smell of the blood still, All the perfumed of Arabia will not Sweeten this little hand. Oh, Oh,

analysis of body fluids.  Analyze a variety of body fluids including saliva, semen, urine, and blood.  Routine test in Forensics lab due to low cost and time associated with tests Chapter 104 Secretors 80% of the population are secretors. Their blood/B, ABO, B AB A, B, O, AB O Chapter 1023 Blood Pattern Reconstruction Scene Pattern Reconstruction 1. Stain condition 2. Pattern 3. Distribution 4. Location 5. Directionality Lab Results Reconstruction 1. Genetic marker typing 2. Age Determination 3. Source /


Serology Chapter 6. Three main questions Is this blood?Is this blood? Is this blood human?Is this blood human? What biochemical markers are found in the.

stain under coverslipProcedure: Place sample of stain under coverslip Heat while add pyradine in alkaline solutionHeat while add pyradine in alkaline solution Salmon colored crystals form if blood presentSalmon colored crystals form if blood present *Do you think labs do this test today?*Do you think labs/presumptive positive for saliva, sent for DNA analysisIf presumptive positive for saliva, sent for DNA analysis Urine What is urine?What is urine? Excreted fluid and waste products by kidneysExcreted fluid /


Forensic Science The Basics of Blood Typing and Spatters.

a crime might have happened. Microscopic Views Bird Blood Cat Blood Dog Blood Fish Blood Frog Blood Snake Blood Human Blood Horse Blood What does the abbreviation BPA represent? Bloodstain Pattern Analysis What can an investigator learn from the analysis of a blood spatter?  Type and velocity of weapon /the diameter of the satellite spatter as you increased the height of the drop? Lab 2 Questions Lab 3: Motion Droplets During this lab, you will see how motion affects the size and shape of the droplets and /


Blood & Blood Spatter Analysis a.k.a. Forensic Serology Sources www.crosscuttingconcepts.com Forensic Chemistry by David E. Newton Infobase Publishing;

diluted up to 10 million; works well on old blood stains too Does not interfere with blood typing or DNA analysis Can give false positives with plant enzymes, oxidizers, metals/blood. Rabbit makes antibodies to human blood cells. Blood is drawn from rabbit and mixed with the unknown blood sample. If the blood is human, clumping will be observed and it can be concluded that the unknown blood was human. Bloodstain Patterns Important elements of Blood pattern analysis: ◦ Type of surface on which blood/


Blood and Bodily Fluid Evidence. Components of Blood Blood is one of the most common and obvious types of evidence left at a violent crime scene. An average.

is expensive. Stain and Splatter Evidence Blood left at a crime scene that is later interpreted by forensic investigators is called blood splatter evidence. Blood splatters are /analysis a.Semen can be identified microscopically or by the Fast Blue B Test 4.Muscle tissue 5.Skin tissue 6.Sweat 7.Tears Secretor: a person who secretes antigens and antibodies (such as A, B, O blood antigens) in all body fluids 80% of North Americans are secretors. Blood Spatter Labs You will be creating sample drop patterns/


Forensic Serology Identification Using Blood Groups.

laboratory may deal with any or all of the following: blood typing characterization of unknown blood stain patterns for crime reconstruction paternity testing semen identification in rape cases DNA techniques used for identification Due to funding & time needed for DNA analysis, many labs focus on basic serology procedures Blood Facts The average adult has about FIVE liters of blood inside of their body, which makes up 7-8/


Behzad Poopak, DCLS PhD bpoopak@yahoo.com Payvand Clinical Specialty Lab. Flowcytometry Behzad Poopak, DCLS PhD bpoopak@yahoo.com.

the raw data, it became apparent that the blood sample contained a clearly identifiable neoplastic population of precursor B-ALL, admixed with a high number of normal T-cells. Steps in Flowcytometry Preanalytical (specimen handling and processing, including antibody staining), Analytical (running the sample through the flow cytometer and acquiring data), and Postanalytical (data analysis and interpretation). Deficiencies such as suboptimal instrument performance/


LAB 1 Immunology Laboratory Equipment. 1- Centrifuge Is equipment used to separate substances of greater and lesser density. Simple centrifuges are used.

pattern. 5. Based on cell characteristics (size and shape), the computer categorizes and quantifies the cells. Flow-Cytometer  Neutrophils  Lymphocytes  Monocytes  Eosinophils  Basophils White Blood Cells, Platelets (stained purple), a T-Lymphocyte white cell (stained green), and a Monocyte white cell (stained/ Pro. Flow Cytometry Data Analysis Fluorescence And Antibodies To The Rescue Contour Plot Density Plot Greyscale Density Dot Plot plots gating histogram LAB 6 Allergy tests Allergy Allergy/


Fire Debris, Fire Investigations and the Forensic Lab - Are We Missing Things? Or, Keeping Up with the Dogs Dr. John D. DeHaan.

modify the technique used. The analyst has to know what issues are important and modify the technique used. Lab Analysis Not just for Volatile Accelerants! Not just for Volatile Accelerants! Identification of Fuels Identification of Fuels Laboratory Identification /or burned paper documents Clothing and shoes Clothing and shoes Tools and tool marks Tools and tool marks Blood stain patterns DNA/saliva Glass fragments Paint chips Hairs and fibers Firearms Purpose: Not Just for Identifying Things! Aid/


1 FORENSIC SCIENCE Serology. 2 Blood Characteristics Plasma--fluid portion of the blood (55%) Cells (45%) –Erythrocytes-- red blood cells; responsible.

Forensic Blood Analysis Questions to be answered: Is it blood? Is it human blood? Whose is it? –Determine blood type, alcohol content, drugs present –Determine the method(s) in which blood may have been deposited 6 Presumptive Tests for Blood Kastle-/Population Distribution of Blood Types in the U. S. TypePercent O A B AB 45 39 12 4 14 BLOOD PATTERN/SEROLOGICAL RECONSTRUCTION SCENE PATTERN RECONSTRUCTION 1. Stain condition 2. Pattern 3. Distribution 4. Location 5. Directionality LAB RESULTS RECONSTRUCTION 1/


Lecture: Forensic Serology Serology: the medical science dealing with serums. Serum: the clear yellowish fluid obtained when whole blood isseparated into.

Support/contradict witness statements  Indicate staged/secondary scenes Blood Stain Patterns  Cast-off Stains Blood Stain Patterns  Drip patterns Blood Stain Patterns  Swipe Blood Stain Patterns  Wipe Blood Stain Patterns  Effects of Surface Texture  Horizontal drop creates circular pattern  Forces of surface tension  Rougher surface = greater distortion Blood Stain Patterns  Impact Angles  Defined as the internal angle at which blood strikes a target surface  Greater angle = greater elongation/


The Case of the Crown Jewels: Investigate a Crime Scene Using DNA Restriction Analysis (DNA Fingerprinting)

you do this for 13 different repeat sequences at 13 different loci on the chromosome, each person produces a different band pattern when the fragments are separated by gel electrophoresis (26 bands will be produced total- 2 bands for each STR analyzed) /lab for analysis. 5. Efforts must be made to search for and collect less obvious evidence such as towels, handkerchiefs, or rags that may have been used and then hidden. 6. Floor cracks and other crevices must be searched for blood evidence. 7. Each stained/


Semen analysis. Part I Semen collection Fertility has nothing to do with potency Does size matter? Concerns about the size of genital are often unwarranted.

of fertilising an oocyte. Also, sperm cells with tail-tip swelling patterns generally have lower frequency of aneuploidy.aneuploidy Volume Web MD advises /analysis Round cells are often encountered during semen analysis. It is difficult to distinguish immature sperm cells (heads without tails) from white blood cells without specialized stains./ internal archive, optional label printer, and simple functionality. Designed for smaller labs on a budget, this system is the perfect automated solution for routine /


Chapter 10 Blood “There will be blood tonight!” —Inigo Montoya, in The Princess Bride.

Montoya, in The Princess Bride Chapter 101 Blood @ the Crime Scene  Location, distribution, pattern of blood, and blood stains can help reconstruct the crime  Can be used as class or individual evidence Chapter 102 Serology Serology – examination and analysis of body fluids A forensic serologist may analyze a variety of body fluids including saliva, semen, urine, and blood Chapter 103 Blood Characteristics  Plasma is the fluid portion of/


Forensic Science. What makes up our blood? RED BLOOD CELLS (Erythrocytes) – The most abundant cells in our blood; they are produced in the bone marrow.

give investigators clues to how a crime might have happened. Microscopic Views Bird Blood Cat Blood Dog Blood Fish Blood Frog Blood Snake Blood Human Blood Horse Blood What does the abbreviation BPA represent? Bloodstain Pattern Analysis What can an investigator learn from the analysis of a blood spatter?  Type and velocity of weapon  Number of blows  Handedness of assailant (right or left-handed)  Position and movements of the victim and assailant/


Forensic Science Lab Activity T. Trimpe 2006 Warning: Some material in this presentation and related videos may be too graphic.

Forensic Science Lab Activity T. Trimpe 2006 http://sciencespot.net/ Warning: Some material in this presentation and related videos may be too graphic for some people. What does the abbreviation BPA represent? Bloodstain Pattern Analysis What can an investigator learn from the analysis of a blood spatter?  Type and velocity of weapon  Number of blows  Handedness of assailant (right or left-handed)  Position and movements of/


Bloodstain Pattern Analysis The use of physics, math & common sense to interpret bloodstain patterns within a forensic setting.

Red blood cells Platelets What’s in Blood? History 1894-Dr. Eduard Piotrowski, wrote earliest reference to bloodstain pattern analysis 1939-Dr. Victor Balthazard, first to use physical interpretation of stains 1955-Dr. Paul Kirk, recognized value of bloodstain interpretation in scene reconstruction. Defense witness in Dr. Sam Sheppard trial. 1971-Professor Herbert Leon MacDonell promoted bloodstain pattern interpretation as a tool in modern criminalstic labs 1983/


Forensic Science Lab Activity. What does the abbreviation BPA represent? Bloodstain Pattern Analysis What can an investigator learn from the analysis.

Forensic Science Lab Activity What does the abbreviation BPA represent? Bloodstain Pattern Analysis What can an investigator learn from the analysis of a blood spatter?  Type and velocity of /stain that radiate out from the spatter; can help determine the direction from which the blood traveled. Passive Bloodstains –Patterns created from the force of gravity –Drop, series of drops, flow patterns, blood pools, etc. Projected Bloodstains –Patterns that occur when a force is applied to the source of the blood/


Forensic Science Lab Activity T. Trimpe 2006 Warning: Some material in this presentation and related videos may be too graphic.

Science Lab Activity T. Trimpe 2006 http://sciencespot.net/ Warning: Some material in this presentation and related videos may be too graphic for some people. What does the abbreviation BPA represent? Bloodstain Pattern Analysis What can an investigator learn from the analysis of a blood /Luminol Reaction Fluorescein This chemical is also capable of detecting latent or old blood, similar to luminol. It is ideal for fine stains or smears found throughout a crime scene. After the solution has been sprayed /


Forensic Serology: Blood

carpets and furniture, reveals a slightly phosphorescent light in the dark where bloodstains (and other stains) are present. Long-dried blood has a tendency to crystallize, or can be made to crystallize with various saline-acid/Blood & Crime Scene: Categories of Blood Patterns Pools of blood have evidentiary value in collecting a wet sample. Drops of blood can reveal the height and angle from which the blood fell onto the surface. According to forensic scientists, the blood spatter analysis claims that blood/


BLOODSTAIN PATTERNS. Interpretation of Bloodstains The location, distribution, and appearance of bloodstains and spatters are useful for reconstructing.

Blood spatter Draw straight lines through the long axis of several blood stains – area of convergence is origin of blood Know the difference between spatter, transfer, and swipe The following Information may be obtained from a proper Bloodstain Pattern Analysis: 1. Distance from the blood/Clothing, hairs, and vaginal and rectal swabs collected for lab examination Facts and Concepts Why must a rape victim stand on a sheet of paper while disrobing for forensic analysis? A rape victim must stand on a new, clean/


CRIME SCENE.

lab: Victim’s clothing Fingernail scrapings Head/pubic hairs Blood (CAN profile) Vaginal, oral, anal swabs (sex-related crimes) Recovered bullets Hand swabs for gun residue analysis/with forceps Blood stain: Scrape surface of stain Use moist swab, for blood Cut stained area /labs require Evidence Submission Form Allows analyst to complete accurate exam Include brief history of case Logical sequence Proper comparison Key Points to Note when evidence submitted Search patterns Items “found” ONLY through analysis/


Chapter 10 Blood Identification & Serology “Out damned spot! Out, I say Here’s the smell of the blood still, All the perfumes of Arabia will not Sweeten.

do not develop 3.Visualize any latent blood stains 4.After carefully documenting, swab blood stains and store in sealed “vacu-tainers” for analysis Chapter 1012 Unknown Stain at a Scene Questions to be answered:  Is it blood?  Is it human blood?  Whose blood is it?  Determine blood type, alcohol content, drugs present  Determine method(s) in which blood may have been deposited Chapter 1013 Blood Presumptive Tests  Hematest® tablet—  drip water/


Blood Forensic Serology and Blood Spatter Analysis.

antibodies will clump (agglutinate) the blood cells together and make it impossible for proper circulation to occur In the lab, these antibody reactions are used to type blood Agglutinated vs.Normal Blood Types Sera are produced that contain anti/not possible because the RBC’s rupture Procedures to type dry blood have been developed, but have largely been replaced now with DNA fingerprinting technology Stain Patterns of Blood Surface Texture Surface is extremely important to the interpretation of bloodstain/


How About A Career In Veterinary Pathology? Opportunities in: Diagnostic Labs Academia Industry Government From the American College of Veterinary Pathologists.

, and quality control/quality assurance  Seek out patterns and correlations between laboratory data in treated and non/Omerza, MT are reviewing dot density plots of peripheral blood lymphocytes. Clinical pathology: flow cytometry for immunophenotyping Careers in/data analysis Paul Grosenstein, BS, EMT is working at the morphometry station using the KS400 system. Immunohistochemical stains for/ collaborate with colleagues in academia, industry, diagnostic labs without having to write grants  Opportunity to/


Catalyst - Tuesday, 01.06.2009 List the types of evidence blood can be classified as and WHY. 1 Blood & Blood Spatter.

In 1939 the meaning of the splatter pattern was first analyzed. When a wound is inflicted, a blood splatter pattern may be created. It takes a grouping of blood stains to make a blood splatter pattern. The pattern can help to reconstruct the events surrounding a shooting, stabbing, or beating. Forensic Science: Fundamentals & Investigations, Chapter 8 31 Blood Splatter Analysis When blood falls from a height or at a high velocity/


Lab Medicine Conference : Cerebrospinal Fluid Analysis.

Lab Medicine Conference : Cerebrospinal Fluid Analysis/Traumatic LP –1 mg % increase per 1000 RBCs per mm3 ƒInterference with CSF / blood barrier –Cerebral hemorrhage –SAH –Cerebral thrombosis ƒEndocrine –Diabetes mellitus –Hyperthyroidism –Hypoparathyroidism –/ƒSperm count (rule out sperm embolus) : $16 Total Charges at H.M.C. for Different Patterns of CSF Test Ordering ƒCBC/diff., gm. stain / culture, glucose, protein : $ 185 ƒAll standard, & culture / sensitivity studies : $ 322 ƒAll standard, & culture //


Serology. Study of bodily fluids Major component of crime scene processing and analysis Serology tests are fast, efficient and inexpensive Applies to.

scene processing and analysis Serology tests are fast, efficient and inexpensive Applies to blood, semen, vaginal secretions, saliva, sweat, tears, vomit and urine prior to further analysis Identifies proteins /Can give a false positive result but that can be sorted out at the lab later. Never want to use a field test that can produce a false /for finding stains that someone has tried to clean up after a crime. White marks are seen when someone has tried to clean up not a blood spatter pattern (CSI shown/


Biotech Continued…. 4.4. How do forensic scientists determine who’s blood has been left at a crime scene? How do forensic scientists determine who’s blood.

blood at the crime scene, RFLPs from this sample can be compared to RFLPs from blood of all suspects to determine who the criminal is. Gel Electrophoresis The DNA fragments must be separated and purified from each other for analysis/stain the DNA fragments. A fluorescent dye is then used to stain the DNA fragments. Ideally this creates a band pattern that is unique to each individual. Ideally this creates a band pattern/ in labs. A DNA primer is used instead because they are easy to produce in labs. (The/


Forensic Science Lab Activity

Bloodstain Science Forensic Science Lab Activity Warning: Some material in this presentation and related videos may be too graphic for some people. T. Trimpe 2006 http://sciencespot.net/ How does a blood droplet form? Click the image for an animation. What does the abbreviation BPA represent? Bloodstain Pattern Analysis What can an investigator learn from the analysis of a blood spatter?  Type and velocity of weapon/


Duke University, Fitzpatrick Institute for Photonics BIOS Lab, Department of Biomedical Engineering Advances in time-resolved and spectroscopic quantitative.

blood smears search for morphology & parasites Requires staining & trained microscopist reading slides NOT high throughput Suffers from interobserver variability InCh microscope would be a robust platform for automated image acquisition & analysis/ before/during/after data acquisition QPS Molecular Specificity Lab has developed methods of photothermal excitation with phase detection/ resolution. Here, we present novel wavelength illumination patterns for acquiring holographic data as well as algorithms for/


Advanced Topics in STR DNA Analysis

recall facts about baseball/basketball/hockey/golf/etc. male pattern baldness congregates with other Y-chromosome bearers to do “/assault victims Male-male mixtures Other bodily fluid mixtures (blood-blood, skin-saliva) Gang rape situation to include or / the stain matches with the suspect. Therefore, the suspect cannot be excluded as the donor of the stain. On/662-669. Tissue grinding method described by FBI Lab Melton et al. (2005) Forensic mitochondrial DNA analysis of 691 casework hairs. J. Forensic Sci./


 Christopher, Crystal, Justin, & Jimmy.  They are used as a confirmatory test o They detect whether or not a sample is/contains blood and it not actually.

was searched and in it, a red stained T-shirt. Investigators sent the stained clothing to a forensics lab where they performed a Teichmann test on it. Results show it was in fact blood and was sent on for further testing. State/: Facts On File, 2008. Print. "Blood Identification." what-when-how — In Depth Tutorials and Information. N.p., 1 Nov. 2010. Web. 3 Apr. 2013.. James, Stuart H., Paul Erwin Kish, and T. Paulette Sutton. Principles of bloodstain pattern analysis: theory and practice. Boca Raton, Fla/


Unit 5 Blood 5.1 Serology. Serology Serology is the examination and analysis of body fluids. A forensic serologist may analyze a variety of body fluids.

labs still use many of the basic serology testing procedures. Kendall/Hunt Publishing Company2 Blood Characteristics Plasma is the fluid portion of the blood (55%) Cells (45%) –Erythrocytes are red blood cells. They are responsible for oxygen distribution. –Leukocytes are the white blood/ contained a chapter in which he discussed the application of blood stain pattern analysis to criminal investigations. Dr. Kirk analyzed the blood stain pattern photos from the Sam Sheppard case and was instrumental in /


Copyright 1994-2000 Genelex Corporation Forensic DNA Analysis Forensic testing (Criminal) ~25,000 cases per year 75% in sexual assault Paternity testing.

sibship analysis Criminal paternity Identify human remains - reverse paternity Twin zygosity Copyright 1994-2000 Genelex Corporation DNA Parentage Evidence Sources Paternity –Buccal (cheek) swabs –Blood and blood stains –Abortus/ single strand form Develop film, DNA typing pattern appears Visualize banding by exposure to X-ray film Wash/Genelex Corporation Forensic Quality Assurance Programs Lab inspection and accreditation – ASCLD-LAB – AABB Parentage Testing Committee Personnel qualifications, training and certification/


An Analysis on Cytology Diagnoses of the Effusion An Analysis on Cytology Diagnoses of the Effusion using LBC Technology using LBC Technology Jong Yull.

Analysis/We should prepare the sample immediately to block cellular degeneration in labs 7 Step 3. Classify specimen according to feature of effusion for/ 80 100 Percentage of increasing diagnostic rate Among the Inadequate specimen Blood MucusClear 24%19%21% Percentage Source: Cellnatech bio, research institute/three-dimensional cancer cells with benign looking. 34 Giemsa stain pattern as intracystic pinkish materials Pap stain pattern as refractive three-dimensional appearance 35 Ductal carcinoma, metastatic/


Which of the following is incorrect. A Resting stem cells are resistant to the toxic effects of chemotherapy drugs B Stem cells give rise to all blood.

15 9 yr old Bull Terrier with maelena What does the pattern of low PCV and low PP suggest? A dehydration B/? 18 9 yr old Bull Terrier with maelena Urine analysis - no haematuria Faecal analysis - no parasites Ultrasound exam - solitary mass in intestine/ / haematology film exam C Diff-Quick is a suitable stain for cytology D Haematology is my favourite subject 4 In/ D Von Willebrands disease Mild thrombocytopenia likely d/t blood loss 10 yr male Lab Appeared normal till last night when began bleeding profusely/


Exam III Chapters 9, 11 and 20 Labs 9-12 Student Presentations.

through a magnetic field and separated by molecular weight… - produces the same pattern so can be used for identification 12. How can toxins be administered and/ increase testosterone; cause aggressive behavior and diminished sex drive; increase risk of liver cancer Lab 9 Analysis of Drugs and Poisons 18. What is pH? What pH levels are considered acidic?/- obtained from an area adjacent to the stain standard/reference DNA- collected from a blood sample or a buccal swab Lab 10 DNA Collection 46. What is a /


Forensic Serology –In 1901 Karl Landsteiner discovered that blood has different types. He won the Nobel Prize for this discovery.

blood types will not mix with other blood types. Before DNA analysis blood was commonly used to link a person to a crime. I – THE NATURE OF BLOOD A.Antigens & Antibodies 1. Blood/Blood Typing 1. The term serology is used to describe a broad scope of lab tests that are used specific antigens and antibody reactions. The most widely used test are used to determine the A-B-O blood/make antiserum for other species. Fill in IV – Stain Patterns of Blood –The location, distribution, and appearance of bloodstains and /


Unit 4: Forensic Glass Analysis Introduction to Forensic Science.

through it (light waves are bent) – Used for manufacturing fine glassware and art glass (stained-glass windows) crystal – Is commonly called crystal 2. Types of Glass 12 Sparkles 2. Types/co.uk Lab 4.1: Glass Fracture Patterns 46 Glass Analysis 1.Composition of Glass 2.Types of Glass 3.Comparing Glass A.Density B.Refractivity 4.Glass Fracture Patterns 5./ evidence found on or embedded in the glass, such as skin, hair, blood, or fibers maintain the chain of custody Package all of the collected materials /


Ch. 12: The Forensics Laboratory. I. Forensics Lab A.Must be accredited and are monitored to keep this accreditation B.Quality assurance program 1. Necessary.

reconstruction evidence a. Luminol = chemical that reacts with minutes quantities of blood b. Alternate light source = detects body fluid stains, fibers, other compounds that fluoresce under various wavelengths of light c. Blood stain analysis Luminol http://www.nfstc.org/links/a nimations/images/blood%2 0spatters.swf Blood stain pattern III.Classifying and using physical evidence in a lab (continued) B. Associative Evidence 1. Is evidence that can be used/


Exam I Chapters 1-3, Supplementary Information, Labs 1-4.

important especially for establishing the physical relationships of items of interest (furniture, stains, weapons, bodies, etc.). 2) Sketches- A sketch of the overall / evidence in court. 24. Know the difference between types of search patterns: 25. What is trace evidence? Trace evidence- very small items associated/blood (for DNA and typing purposes) 5.vaginal, anal, and oral swabs (in sex related crimes) 6.recovered bullets from the body 7.hand swabs from shooting victims (for gunshot residue analysis) Lab/


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