Interpretation of Bloodstain Evidence at Crime Scenes Second Edition

Medium - velocity impact blood spatter consists of stains produced on a surface when the blood source has been subjected to a force at a velocity between approximately 5 and 25 feet per second ( Figures 3.1 , 3.2 , and 3.3 ) .

Author: William G. Eckert

Publisher: CRC Press

ISBN: 0849381266

Category: Law

Page: 366

View: 548


As witnessed in landmark criminal cases, the quality and integrity of bloodstain evidence can be a crucial factor in determining a verdict. Since the first edition of Interpretation of Bloodstain Evidence at Crime Scenes was published nearly a decade ago, bloodstain pattern interpretation has continued to grow as a branch of forensic science. Revised and updated to reflect new technology and developments in the field, the second edition is packed with new information and illustrations-including 421 photographs and diagrams of improved quality that will aid in interpretation of evidence. Expanding on a single chapter presented in the bestselling first edition, the second edition details, in four chapters, an introduction to bloodstain interpretation; low-velocity impact and angular considerations; medium and high-velocity impact; and the significance of partially dried, clotted, aged, and physically altered bloodstains in four new chapters. A full chapter on the detection of blood with luminol, featuring high-quality, full-color photographs of luminol reactions, has been added. This new edition also includes 12 new case studies in addition to 8 original case studies from the first edition that have been retained for their interpretative value. Everyone involved in crime scene evaluation and interpretation-law enforcement officers, criminologists, medical examiners, forensic pathologists, medicolegal personnel, and prosecutors and defense attorneys-will benefit from the improved and expanded second edition of this definitive reference.

Forensic Science

The manner in which blood spatter is produced can be divided into two broad categories as shown in Figure 11.9 : ( 1 ) spatter created by an impact mechanism and ( 2 ) spatter created by a projection mechanism . Spatter created by an ...

Author: Stuart H. James

Publisher: CRC Press

ISBN: 0849327474

Category: Law

Page: 778

View: 631


Written by highly respected forensic scientists and legal practitioners, Forensic Science: An Introduction to Scientific and Investigative Techniques, Second Edition covers the latest theories and practices in areas such as DNA testing, toxicology, chemistry of explosives and arson, and vehicle accident reconstruction. This second edition offers a cutting-edge presentation of criminalistics and related laboratory subjects, including many exciting new features. What's New in the Second Edition New chapter on forensic entomology New chapter on forensic nursing Simplified DNA chapter More coverage of the chemistry of explosives and ignitable liquids Additional information on crime reconstruction Revised to include more investigation in computer forensics Complete revisions of engineering chapters New appendices showing basic principles of physics, math, and chemistry in forensic science More questions and answers in the Instructor's Guide Updated references and cases throughout An extensive glossary of terms

Crime Scene Bloodstain Pattern Analysis Workbook

Correctly measure the widths and lengths of the selected blood spots from an impact blood spatter or cast-off bloodstained patterns. g. Use these measurements of the selected blood spots from the impact blood spatter or cast-off ...

Author: N. Leroy Parker

Publisher: Author House

ISBN: 9781491848210

Category: Law

Page: 135

View: 600


This workbook is designed to assist the Crime Scene Analyst, Technician or Investigator in documenting bloodstained patterns that are located at the crime scene or on bloodstained items that are submitted for an analysis. It is also designed to assist the Crime Scene Analyst, Technician or Investigator in reconstructing or analyzing a bloodstained crime scene or a bloodstained item for which a bloodstain pattern analysis is requested The documentation could be accomplished with overall, midrange photographs and close-up photographs with 2, 3 or 6 centimeter stick-on tapes that should be placed in the center of each rectangular area. The documentation should also consist of notes and rough sketches with measurements. The close-up photographs of the rectangular areas with the 2, 3 or 6 inches stick-on tapes that were placed in the center of those areas should be taken with a parallel film /camera plane. The stick-on tapes should be labeled according to the surface on which they would be placed. Example: West wall of living room #1 (ww of lr #1) and west wall of living room #2 (ww of lr #2) etc. The number of close-up photographs would be determined by the number of rectangular areas with the stick-on tapes. Example: At least ten (10) close-up photographs should be taken if ten (10) stick-on tapes were placed on the bloodstained surface. The bloodstain pattern reconstruction or analysis should be done by first recognizing and or identifying the many different types of patterns in a bloodstained scene or on a bloody item. The next step should involve the reconstruction of the points or areas of convergence and origin and then a determination of how the other patterns were most likely created. The workbook contains several tasks and assignments that would provide the student with the tools to accomplish the documentation and analysis. The Crime Scene Analyst, Technician or Investigator after successfully completing the workbook / workshop should be aware that: 1.0 Single drops of blood in a crime scene or on an item were influenced by the surface from which the blood fell (the volume); the diameter, the shape, the impact angle, the scalloping of the perimeter and the direction of travel of the dropped blood that impacted the target surface (the volume, the height from which the blood fell, the texture of the target surface on which the blood fell, the angle of the targeted bloodstained surface and the horizontal speed of the source that issued the blood). 2.0 Numerous drops of blood in the same pattern in a crime scene or on an item were influenced by the force or the impact (less than 25 feet per second - dropped blood and cast-off bloodstain); (25 to 100 feet per second - medium velocity bloodstain); (over 100 feet per second - high velocity bloodstain); projected blood (arterial bleeding); transfer of blood from one object to another (contact or transfer bloodstains, imprint bloodstains, smears or swipes and wipes); large volumes of blood (splashed or pooled blood) 3.0 The reconstruction or analysis of the points or areas of origin could be determined by strings, scaled drawings or calculations. The interpretation of the other patterns (non impact) along with the Medical Examiner's autopsy report should allow the crime scene analyst, technician or Investigator to complete a bloodstain pattern analysis report and if possible explain and or testify to the sequence of events that occurred at the crime scene.

Scientific and Legal Applications of Bloodstain Pattern Interpretation

BLOODSTAINS BLOOD SPATTER Up to 5 I ft. per sec. BLOOD SPATTER 5 to 25 ft. per sec. for most events with exceptions BLOOD SPATTER 100 + ft. per sec. [ Free-falling drops of blood affected only by gravity ] Gunshot trauma 1 1 Blunt force ...

Author: Stuart H. James

Publisher: CRC Press

ISBN: 9781351417532

Category: Law

Page: 320

View: 403


Since 1955 when Dr. Paul Kirk first presented a bloodstain evidence affidavit in State of Ohio v. Samuel Sheppard, expert testimony on bloodstain interpretation has gained wide acceptance in U.S. courts. Scientific and Legal Applications of Bloodstain Pattern Interpretation brings together some of the most respected and noted experts in forensic science, the law, and bloodstain interpretation to provide a comprehensive overview of the discipline. It discusses research, applications, and the current view of bloodstain pattern interpretation within the legal system at the trial and appellate court levels, as well as scientific approaches and developments in the field. Scientific and Legal Applications of Bloodstain Pattern Interpretation will help attorneys who are questioning and cross-examining expert witnesses have a good working knowledge of bloodstain interpretation. Included is a full-color atlas of bloodstains, in conjunction with a glossary of terms and an outline of basic laboratory experiments that are commonly used in the discipline. Among the outstanding contributions in this volume you will find: An excellent chapter by Carol Henderson discusses the legal and ethical aspects of bloodstain pattern evidence in detail. A post-conviction analysis by Marie Elena Saccoccio evaluates how bloodstain evidence can play a role in the appeal process. Misinterpretation and overinterpretation of bloodstain evidence can occur in our courts of law-be prepared to effectively analyze the evidence and the testimony with Scientific and Legal Applications of Bloodstain Pattern Interpretation.

Forensic Science

Blood Spatters The physical nature of bloodstains can con- tain valuable information. ... The value of blood spatter examination is seen in distinguishing between blood transferred during an attack and that transferred to someone ...

Author: William J. Tilstone

Publisher: ABC-CLIO

ISBN: 9781576071946

Category: Law

Page: 307

View: 693


Written by experts for the general audience, this A-Z presentation covers all aspects of forensic science from its beginning to its central place in modern law enforcement.

Bloodstain Pattern Analysis with an Introduction to Crime Scene Reconstruction

Given that various organizations and individuals have helped define the history of bloodstain pattern analysis, as well as the existence of a number of different bloodstain classification systems, the reader should not be surprised that ...

Author: Tom Bevel

Publisher: CRC Press

ISBN: 9781420052725

Category: Law

Page: 440

View: 641


Objective establishment of the truth is the goal of any good crime scene investigator. This demands a consideration of all evidence available using proven scientific methodologies to establish objective snapshots of the crime. The majority of forensic disciplines shed light on thewho of a crime, bloodstain pattern analysis is one of the most imp

Murder 101

An article on the interpretation of blood spatter that appeared in Law Enforcement Technology stated , " When a victim sheds blood , whether the result of a homicide or a car accident , the bloodstains and patterns formed are ...

Author: Robert L. Snow

Publisher: Greenwood Publishing Group

ISBN: 027598432X

Category: Social Science

Page: 212

View: 501


Offers a lively "course" in the investigation of murder, from the crime scene through the trial, stopping along the way to examine the body, the evidence, the witnesses, the suspects, and the aftermath of this most heinous crime.

Principles of Bloodstain Pattern Analysis

Halake,76 the state used a police officer to testify that the blood spots found on the defendant's pants were consistent with gunshot blood spatter.77 The state argued that the officer's expertise in the field was sufficient because he ...

Author: Stuart H. James

Publisher: CRC Press

ISBN: 9781420039467

Category: Law

Page: 576

View: 310


Bloodstain evidence has become a deciding factor in the outcome of many of the world's most notorious criminal cases. As a result, substantiation of this evidence is crucial to those on either side of the courtroom aisle. The challenge is to obtain an authoritative reference that provides the latest information in a comprehensive and effective manner. Principles of Bloodstain Pattern Analysis: Theory and Practice presents an in-depth investigation of this important subject matter. A multidisciplinary approach is presented throughout the book that uses scene and laboratory examinations in conjunction with forensic pathology, forensic serology, and chemical enhancement techniques. Emphasis is on a thought process based on taxonomic classification of bloodstains that takes into account their physical characteristics of size, shape, and distribution, and the specific mechanisms that produce them. Individual chapters analyze case studies, with two chapters specifically discussing the details of legal issues as they pertain to bloodstain pattern analysis. Information highlighted throughout the book includes an examination of bloodstained clothing and footwear and information on bloodstain interpretation for crime scene reconstruction. Dramatic color images of bloodletting injuries, bloodstains, and crime scenes are also presented to compliment the technical content of this resource. Features § Provides 500 full color photographs - the first bloodstain pattern book presenting dramatic full color images of bloodletting injuries, bloodstains, and crime scenes § Contains appendices with scientific data that includes trigonometric tables and metric equivalents, as well as crime scene and laboratory check lists, and biohazard safety precautions § Discloses court decisions relating to bloodstain pattern analysis and presumptive blood testing § Written by authors with many years of experience in the field, and features chapters contributed by qualified and respected forensic scientists and attorneys

Bloodstain Pattern Evidence

Volume (pool): An accumulation of blood Bloodstain pattern training: A technique to determine cut off points on a measured blood spatter. Motion. The principles used to define Newtonian fluids were taken from his Principia, ...

Author: Anita Y. Wonder

Publisher: Elsevier

ISBN: 0080549713

Category: Social Science

Page: 400

View: 779


In Bloodstain Pattern Evidence, the concepts introduced in the author's first book, Blood Dynamics, are updated and applied to provide essential answers in the resolution of actual crimes. The book is accessible to all levels of investigators, regardless of academic background, and allows readers to develop a fundamental understanding of the underlying scientific principles behind bloodstain pattern evidence. Bloodstain Pattern Evidence builds on the fundamental ideas brought about by an understanding of Non-Newtonian dynamics, and illustrates through case work the practical forensic science applications of these principles to the analysis of bloodstain patterns. Extensive case examples provide practical application of essential pattern analysis principles Extensively illustrated with over 350 photos and line drawings Takes a unique and scientific approach to bloodstain pattern analysis by exploring the fundamentals of fluid behavior

Dr Sam Sheppard on Trial

However , I do not believe Dr. Sam Sheppard killed Marilyn Sheppard for two reasons of the blood spatter interpretation . One is from all the spatter that was in that room , I would expect the perpetrator to have a considerable amount ...

Author: Jack DeSario

Publisher: Kent State University Press

ISBN: 0873387708

Category: Biography & Autobiography

Page: 388

View: 591


Marilyn Sheppard, four months pregnant and mother of a toddler son, was bludgeoned to death in her Bay Village, Ohio, home in the early morning of July 4, 1954. The cause of death was twenty-seven blows to the head with a heavy instrument. Who took her life so brutally has been the subject of much controversy and debate for nearly a half-century. Was it her husband, Dr. Sam Sheppard, who was convicted in what was then called "the Trial of the Century," in the case that helped inspire the TV series and the movie The Fugitive? Or was the killer, as Dr. Sam claimed, a "bushy-haired intruder"? Or could it have been Richard Eberling, the window washer who worked for the family, as the Sheppards' son, Sam Reese Sheppard, believes? Dr. Sam spent ten years in prison before the U.S. Supreme Court overturned the initial verdict in an important legal decision, determining that the doctor did not receive a fair trial due to excessive press coverage. Defended by F. Lee Bailey in his second trial in Cleveland, Sheppard was found not guilty of his wife's murder. And then in 2000, in what has been referred to as "the Retrial of the Century," Sam Reese Sheppard attempted to prove in a civil trial, while suing the State of Ohio for millions of dollars, that his father had been wrongly incarcerated. Dr. Sam Sheppard on Trial presents a comprehensive and final analysis of this controversial case from the perspective of the prosecutors. Jack P. DeSario, together with co-author William D. Mason, chief attorney for Cuyahoga County, Ohio, provides all the facts, evidence, expert testimony, both old and new, and sworn statements of the principals in this case, which concluded in April 2000. The jury unanimously found that Dr. Sheppard was not innocent.