Home

Collection and Preservation of hair evidence SlideShare

Upcoming SlideShare. Crime-Scene Investigation and Evidence Collection Introduction A single hair or clothing fabric can lead police to a responsible person The goal of a crime scene investigation is to recognize, document, and collect evidence at the scene of a crime. Priorities Safety of all individuals in the area Preservation of. Evidence collection using swabbing. 12. A cigarette butt as a source of DNA evidence. Shed cells left behind on a cigarette butt can be a source of DNA. 13. Semen 14. Condition Of Sample Location Collection liquid Victim Collect sample with swabs and should be air dried and packed in paper envelopes Collection, Preservation, & Dispatch of Specimen (Trace Evidence) To Analytical Laboratory 17. • The scientific study of the specimens pre-requires: 1. Collection of Material from source 2. Its Preservation 3. Despatch to the laboratory 18

COLLECTION, PRESERVATION, AND MARKING OF FIBER/HAIRS EVIDENCE Before attempting specific procedures listed below, note the following general precautions: (1) The size of container should correspond to the size of the object. (2) Do not package wet evidence. Fibers or objects containing fiber evidence should be air dried befor Hair s a common type of evidence found ln a variety of different types of criminal cases, 1. Since hair evidence ls generally small in nature, care should be taken to protect evidence from loss or contamination. 2. Several methods could be used ln the detecting of hair evidence: visual searches, alternate light sources and searches. The guide provides industry standard procedures relative to the collection, preservation, and handling of evidence appropriate for various crime scenes and circumstances. (12) Hair and Fibers. Hair and fiber evidence includes loose hairs from human suspects and animals, loose fibers, and hair or fiber products. (13) Hides and Furs Blood collection and preservation 1. COLLECTION &PRESERVATION OF BLOOD 2. It is a blood collection used an all labs to find out why symptoms are appear in the patient Phlebotomy(to cut a vein in Greek) is the process of making incision in a vein. A person who practices phlebotomy is termed as phlebotomist The location of the hair then becomes critical. Label the container that the evidence is in with your initials, serial number, the date and time, evidence number, location, and evidence description. The evidence number should correspond to the evidence placard or identification label that appeared in the photograph with the hair

CSI and Evidence Collection - SlideShar

  1. ing the perpetrator of a crime and in providing more information about what actually took place. When gathering a hair sample, it is better to have a larger sample of hair rather than a smaller one, as different hairs on the same person can contain many variations.
  2. g, taping, or tweezing, take blood samples, remove bullets, dust for fingerprints, and so on. Processing the crime scene for fingerprints prior to trace evidence collection is not recommended because it can . Inadvertently transfer trace evidence onto the clothing of the technicians
  3. 2. Evidence Preservation. The most important part of evidence collection is. protecting the crime scene. 3. Evidence. Anything that can be used to connect. A victim to a suspect. A suspect to a victim
  4. ated until it can be recorded and collected. The successful prosecution of a case can hinge on the state of the physical evidence at the time it is collected

Evidence Preservation. This working group consists of experts in all aspects of biological evidence preservation (see following list) who have devoted time to researching and documenting the best advice that current technology allows. The Technical Working Group on Biological Evidence Preservation convened in August 2010 with th Pendleton and Springfield. The labs provide services in the scientific examination of physical evidence, collection and preservation of evidence, analysis of major crime scenes and expert testimony regarding the scientific examinations. In addition, the FSD manages and administers the CODIS database and th

DNA evidence may be obvious and collection of such objects as teeth, bone and hair is rather straightforward, though collection of evidence such as saliva or sweat or skin cells is more difficult. Scraping, swabbing, taping or collecting the item can accomplish collection of blood and body fluids The initial stages of physical evidence examination can be pivotal to the successful resolution of criminal investigations. In the present paper we intend to point and offer some guidelines for the methods employed in the recognition, collection and preservation of physical evidence used for DNA analysis. Keywords: DNA, physical evidence, human. Collection and preservation of these types of evidence requires special techniques not used for other types of evidence. Because the impressions in soft materials like dirt or sand can easily be disturbed and thereby lost, the upmost care must be taken not to walk on or around the area of the impression without extreme care Firearms Evidence Home > Evidence Handling Procedures > The Crime Scene > Collection of Evidence > Firearms Evidence. The collection of firearms includes the firearm, ammunition, and associated materials, such as clothing with gunshot residue deposits.. Firearms. Firearms should be unloaded and placed in a safe condition at the point of collection Depending upon case circumstances, other evidence may be present. An investigator may need to consider latent prints, tool marks, broken glass, shoe/tire prints, blood stains, saliva, and other trace evidence. See the Physical Evidence Bulletins for collection and preservation of other types of physical evidence

This chapter explores the principles and practices that guide the collection, handling, and preservation of microbial forensic evidence. Mr. Adam Hamilton, President and CEO of Signature Science LLC, gave an overview of sampling and preservation, reviewing potential applications of microbial forensics both inside and outside of law enforcement Collection And Preservation Of The Toxicological Evidence The material to be collected in the cases of poisoning typically is of two types these can be biological or non-biological. The biological material includes the blood, vomit, saliva, stomach wash, intestine, nails, bones, brain, liver, kidney, teeth, lungs, spleen, hair, and.

Sample collection and preservation of - SlideShar

  1. ation or alteration of the evidence. 5
  2. and hair may be found adhering to the fenders, grill, side mirrors or parts of the undercarriage. Fabric impression patterns may also be observed on surfaces with which the fabric came into contact. COLLECTION, PRESERVATION, AND MARKING OF FIBER EVIDENCE. Before attempting specific procedures listed below, note the following general precautions: 1
  3. Describe the proper collection and preservation of paint evidence from an automobile suspected of being involved in a hit-and-run incident. Paint that is foreign to the suspect automobile is observed on the hood
  4. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators.

Crime scene collection techniques differ depending on the type of evidence and the substrate upon which it is found. It is preferable to collect evidence in its original state. If the evidence is fragile or can easily be lost, the entire object should be collected and packaged, if size and circumstances permit physical and digital evidence, collection and preservation of evidence, reconstruction of major crime scenes and expert testimony regarding the scientific examinations according to the legal directions listed above. In addition, the FSD manages and administers the CODIS database and the State of Oregon' JS 113: Trace evidence- Hairs, Fiber and Paint Announcements, Assignments and Acknowledgements Learning Objectives (Chapter 8) Hair Describe cuticle, cortex and medulla and 3 growth phases Explain distinction between human vs animal hair List useful macro and microscopic hair features Explain proper collection of hair evidence If hairs can be seen, you should collect and secure the hair at the scene, thus eliminating the chance the hair may be lost when the item is moved (see step 5 for collection and packaging of hair). Then, if the entire item can be transported, it should collected so that the laboratory can examine the item for more hairs or other trace evidence Significance of Hair Evidence. The significance of hair examination results is dependent on the method of evidence collection used at the crime scene, the evidence processing techniques employed, the methodology of the hair examination process, and the experience of the hair examiner

Standard Practice for the Collection and Preservation of Organic Gunshot Residue 1. Scope Evidence in a Forensic Science Laboratory hair, clothing, and other surfaces). OGSR can also be found in the cartridge case after firing and can be recovered to provide information about the constituents of the propellant or the primin Location and Collection. Evidence doesn't official exist until someone recognizes an item's potential value to the investigation and prosecution of a crime. Locating and collecting evidence must be done in a way that doesn't alter it in any way or cause the alteration of other evidence items around it

1. trace evidence - SlideShar

  1. e the most probative pieces of evidence and to establish priorities. Although this brochure is not intended as a manual for DNA evidence collection, every officer should be aware of important issues involved in the identification.
  2. e the weapon for possible trace evidence such as blood, hair, fibers, tissue, or paint that may be relevant. If it doubt, do not dust for prints
  3. for collection of hair evidence. • Dry wet/damp hair prior to packaging. • Visually apparent crime scene hair may be 'lifted' with a sticky note or 'picked' with clean forceps or gloved hand. • If hair evidence is dry, it can be packaged in a resealable plastic bag. Double packaging in paper is always appropriate; seal all seams

Forensic evidence collection is a systematic process that follows state and Federal guidelines. The references pertaining to evidence collection should be readily available in every setting. Most evidence collection kits will contain instructions for using the items contained within them Semen is a bodily fluid. When collecting, observe Universal Precautions. Wear new, unused, clean latex or nitrile gloves. Wear respiratory and eye protection as needed. Photograph the semen-stained item in place. If the semen stain is wet, place the item on new, clean, dry paper. Place the item and paper in a draft-free, dry location that is.

The evidence collection sequence shall be based on: The scene location: interior, exterior, within a vehicle or other location Hair Standards images captured shall be treated according to G.O. 532.03 Collection, Processing & Preservation of Digital Evidence. The images shall be uploaded in zipped file format Hair evidence can be an important element in solving crimes because it can put a victim and suspect together at a crime scene. Hairs can be transferred directly or from one person to another, or through indirect means. An example of indirect transfer would be when people shed hairs onto their clothes and then transfer them to another person Recommended method: Use an NMS Labs PROTECTIKIT® hair collection kit designed specifically to facilitate collection of hair specimens. Directions for use are included in the kit. For pricing and to order kits, please contact Forensic Client Services at 1-866-522-2216 or forensics@nmslabs.com expectorate deep cough sputum directly into a sterile screw-cap collection cup or sterile dry container. d. Specimen handling. Label the vial or container with the patient's name, ID number, specimen type, and date collected. Store fixed cells at room temperature. If unfixed specimens will be examined within 48 hours after collection, kee Preservation of viscera 1. Nikhil Oza Roll No. 62 IV Semester Presented By- Forensic Medicine 2. Specific Learning Objectives (SLOs) 1) Case Presentation I 2) Circumstances for Preservation of Viscera 3) Routine Viscera Preserved 4) Special Preservations 5) Collection 6) Preservatives Used 7) Dispatch of Viscera 8) Case Presentation I

collection and preservation of evidence. • Make appropriate notes of the scene, evidence located within the scene and the condition of the evidence. • Determine if any additional equipment or personnel are needed to process the scene, i.e., blood-spatter analysis or alternate light sources 13823.11. The minimum standards for the examination and treatment of victims of sexual assault or attempted sexual assault, including child sexual abuse, and the collection and preservation of evidence therefrom include all of the following: (a) Law enforcement authorities shall be notified. (b) In conducting the medical evidentiary examination. But now forensic soil analysis and evidence can help find bodies, disprove alibis, and help figure out where an important piece of evidence came from. In this lesson, you're going to get a brief. Collecting Paint Evidence. In order to collect and preserve paint evidence, it is important to start with securing the scene of the crime. Prior to the collection of a paint sample, the area.

evidence analysis, and a list of services we cannot provide. In the case of services we cannot provide, we make every effort to help the investigator find a suitable alternative for analytical needs. General guidelines for the collection, preservation, and packaging of physical evidence. The procedure for submitting physical evidence Footwear, The Missed Evidence. The scope of a complete examination consists of two main functions: first, the recovery process, which includes the discovery and preservation of the prints, and second, the identification process, which involves evaluations, comparisons, and findings related to the recovered impression. (Grieve 1988) Evidence Collection and Preservation. though this bulletin is not intended as an instructional manual for DNA evidence collection, every victim service provider should be aware of important issues involved in the identification, collection, transportation, and storage of DNA evidence

Blood collection and preservation - SlideShar

  1. SECTION 17-28-70. Preservation and management of physical evidence and biological material; wilful destruction of evidence. (A) The court shall order a custodian of evidence to preserve all physical evidence and biological material related to the applicant's conviction or adjudication pursuant to the provisions of Article 3, Chapter 28, Title 17
  2. List hair features that are useful for the microscopic comparison of human hairs. Color, length, diameter, presence/absence of medulla, color of pigments, dyed/bleached Explain the proper collection of hair evidence
  3. ation for the collection of evidence shall have reference specimens taken, except when he or she specifically objects thereto. A reference specimen is a standard from which to obtain baseline information (for example: pubic and head hair, blood, and saliva for DNA comparison and analysis)
  4. The recovery and collection of evidence in sex-related homicide and death investigations is of paramount importance to the overall investigation. Although the general principles of collection, chain of custody and preservation remain the same, there are unique aspects to the types of evidence encountered in sex-related events
  5. Alopecia areata is an autoimmune disorder characterized by transient, non-scarring hair loss and preservation of the hair follicle. Hair loss can take many forms ranging from loss in well-defined patches to diffuse or total hair loss, which can affect all hair bearing sites. Patchy alopecia affecting the scalp is the most common type

Biological Evidence - Hair - Crime Museu

Once the gauze pad or swab is dry, place it into a clean, new evidence collection envelope. If swabs are being collected, insert them cotton tip first into the envelope. Submit a new, unused gauze pad or swab in a separate container as a control sample. Seal the container (s) with tape, not your own saliva. Initial and date the tape Depending upon the case circumstances, other evidence may be present. An investigator may need to consider latent prints, toolmarks, broken glass, shoe/tire prints, blood stains, saliva, and other trace evidence. See the Physical Evidence Bulletins for the collection and preservation of other types of physical evidence

Trace evidence — fibers, hair, glass, paint chips. Biological evidence — blood, saliva, semen. Comparative evidence — latent fingerprints, tool marks. Items of physical evidence are not always visible to the naked eye and may be easily overlooked. A methodical approach to the collection and preservation of evidence is essential Physiological Specimen/DNA Collection. The most frequent forms of DNA found at the crime scene are: blood, semen, hair, saliva, skin cells, mucous, perspiration, urine, fingernails, etc. Sirchie offers a full line of products to facilitate the proper collection and preservation of physiological specimens Trace Evidence Analysis is the discipline of forensic science that deals with the minute transfers of materials that cannot be seen with the unaided eye. The handling and analysis of trace evidence requires care and specialized techniques. Trace evidence may provide a link between the victim and a suspect, a victim and a scene, or the suspect.

FBI — Hairs, Fibers, Crime, and Evidence, Part 3, by

Upon conviction and sample analysis, perpetrators' DNA profiles are entered into the DNA database. Just as fingerprints found at a crime scene can be run through AFIS in search of a suspect or link to another crime scene, DNA profiles from a crime scene can be entered into CODIS. Therefore, law enforcement officers have the ability to identify. (5) These administrative rules provide best practice scientific guidelines, procedures and techniques for the collection, retention, preservation, and cataloguing of trace biological evidence from crimes scenes, individuals, and items to be submitted to the Oregon State Police Forensic Services Division for testing, analysis, or DNA profiling.

Evidence Preservation Prior to packaging and shipping evidence, call the pertinent unit for speciic instructions. Take precautions to preserve the evidence. Wrap and seal each item of evidence separately to avoid contamination. Place the evidence in a clean, dry, and previously unused inner container submitting physical evidence to the CFS Laboratories. The handbook also provides information relating to best practices regarding collection and preservation of evidence to maintain the integrity of the evidence prior to submission. This handbook is not intended to be a comprehensive guide for crime scene processing Preserving Evidence. Preserving evidence should be the top priority of those entrusted with gathering and collecting evidence. Evidence collection protocols apply to both pre-collection and post-collection evidence. If evidence is not properly preserved prior to collection, it may be contaminated or destroyed

Evidence Collection > Preserving Evidence From crime scene to forensic laboratory to courtroom, all evidence must be identified, inventoried and secured to preserve its integrity. It is important to demonstrate that the evidence introduced at trial is the same evidence collected at the crime scene and that access was controlled and documented Exam and Evidence Collection Procedures (continued page 3) Collect evidence to submit to the crime lab for analysis, according to jurisdictional policy. 1 The following evidence from patients, along with completed documentation forms, typically is submitted to the crime lab designated by the jurisdiction. 2 Jurisdictions may require collection of additional or differen The following guidelines for the collection and preservation of questioned blood, body fluids and tissues are included here as a general reference; the investigator should get precise instructions on handling serological evidence from a certified crime scene technician or from the serology section of their jurisdiction's forensic laboratory or. Hair and fibre are two of the most important resources in Forensic Science and are often responsible for providing valuable clues as to the identity of an assailant or attacker. The discovery of hair on the body of a victim or on the clothes of someone who has been the victim of an assault can often be used to determine race and sex. It can.

Items that could be cross-contaminated must be packaged separately. There's a rule of thumb for other types of evidence, too, and here's a handy list for the proper packaging of those items. Hair - Double packaging in paper is best. However, if the hair is completely dry, plastic will work in a pinch Bodily Fluids. Select a type of evidence to review its collection and packaging procedures. Remember to also review the Checklists prior to collection and prior to releasing the scene. Out of gallery

PPT - Evidence Preservation PowerPoint presentation free

Collection and Preservation of Evidence: Part 2, Examination and Documentation of the Crime Scene (revised) Collection and Preservation of Evidence: Part 3, Collection and Preservation of Evidence (revised) Collection and Preservation of Evidence: Part 4, Special Considerations for Sexual Assault (revised Excerpt from Research Paper : ¶ Blood Evidence A POTENTIAL AND VALUABLE LINK Blood evidence is an extremely valuable item in criminal justice (Schiro, 2011; NIJ, 2000; OSP, 2002; NFSTC, 2013; Bestino, 2013). It has the unique and undisputable potential of solving a case or a crime as it can accurately identify a participant or a victim in a crime. It can form a connection between a person. and Forensic Evidence Preservation type of physical evidence: • Trace • Hair Minimizing Evidence Loss §115.64 (3) If the abuse occurred within a time period that still allows for the collection of physical evidence, request that the alleged victim not take any actions that coul 8.1. The responsibility of trace evidence collection may be assigned to personnel of varying occupations and levels of expertise such as crime scene technicians, law enforcement personnel, and medical personnel. These personnel must be trained in trace evidence detection, collection, and preservation techniques. 8.2 Types of Evidence Two general types: Testimonial—a statement made under oath; also known as direct evidence or Prima Facie evidence Physical—any object or material that is relevant in a crime; also known as indirect evidence. Examples are hair, fiber, fingerprints, documents, blood, soil, drugs, tool marks, impressions, glass

Protecting the Crime Scen

In the present paper we intend to point and offer someguidelines for the methods employed in the recognition, collection and preservation of physicalevidence used for DNA analysis.Keywords: DNA, physical evidence, human identification.1. Introduction During the past few decades, physical evidence has become increasingly important incriminal. evidence for up to 72 hours. Long-Term Storage: A location that is designated to secure evidence or property items in the custody of an agency until the items are diverted, sold, released, or destroyed. The Working Group recommends that long-term storage refer to any location where evidence may be stored for more than 72 hours Trace Evidence. The collection and preservation of trace evidence is more difficult than other, larger forms of physical evidence. Trace evidence remember, can be hairs, fibers, specks of clothing or objects that are for all intents and purposes, nearly invisible or invisible to the naked eye

For assistance in locating experts and specialists in various forensic disciplines, please email Forensic Services. Forensic Services maintains a library of resources, including: For assistance researching a discipline, testing method, or expert, email Forensic Services. Additional links for evaluating forensic evidence can be found below Identifying DNA Evidence Since only a few cells can be sufficient to obtain useful DNA information to help your case, the list below identifies some common items of evidence that you may need to collect, the possible location of the DNA on the evidence, and the biological source containing the cells Careful collection of materials from a crime scene can yield a wealth of information about where a sample came from and how it helps to tell the story. This guide explains the principles of trace evidence, how and when trace evidence is used, common terms and other resources about trace evidence

CSI: Collecting the Evidence UniversalClas

The following steps will be taken to preserve evidence: avoid contaminating evidence to the extent possible. do not move anything, including the body of a deceased, unless absolutely necessary to ensure compliance with policy requirements respecting the preservation of crime scenes and evidence and the safeguarding of staff and inmate well-being § 15A-268. Preservation of biological evidence. (a) As used in this section, the term biological evidence includes the contents of a sexual assault examination kit or any item that contains blood, semen, hair, saliva, skin tissue, fingerprints, or other identifiable human biological material that may reasonably be used t include the collection and preservation of soil evidence and for forensic scientists to enable them to advise crime scene investigators. 1.2. Units - The values stated in SI units are to be regarded as the standard. Non-SI units are also included for the convenience of the guide user. 1.3

Types of Evidenc

evidence collection and preservation procedures common to every patient are included in a specia; section. Flow charts are also provided. OCJP 923, Medical Report: Suspected Sexual Assault, used for recording the findings of evidential examinations, has been revised to guide the examination. OCJP 925, Medica The main purpose of Irving Police Department Forensic Investigations is the application of modern science to investigate criminal cases and to resolve legal issues. Forensic Investigations is a highly technical unit that is responsible for identification, documentation, collection, analysis, and preservation of physical and digital evidence Evidence Collection and Preservation Keeping DNA evi-dence untainted until it has been collected and recorded is the most important aspect of managing the evidence. Proper collection is essential for successful DNA testing. Because prosecution of a case one sneezes or coughs over the evidence or touches his or her hair, nose, or other. 8. state the proper techniques for the collection, preservation, and packaging of common types of physical evidence; 9. explain the concepts of fingerprints and fingerprint evidence; 10. categorize trace evidence including blood, hair, fiber, paint, glass, and soil; 11. identify essential elements of impression evidence including firearm, tool Digital Forensics is the preservation, identification, extraction, and documentation of computer evidence which can be used in the court of law. Process of Digital forensics includes 1) Identification, 2) Preservation, 3) Analysis, 4) Documentation and, 5) Presentation. Different types of Digital Forensics are Disk Forensics, Network Forensics.

Module 06 :: Firearms Evidenc

PHYSICAL EXAMINATION: Evidence Collection The New York State Department of Health and the American Academy of Pediatrics recommend the collection of forensic evidence when there is suspicion of a sexual abuse incident within 96 hours of the examination. In recent studies, most forensic evidence has been found on linens or clothing within 24 hours A hands-on approach to understanding the fundamental theories of physical evidence practically applied and the legal consideration involved in the collection, preservation, and presentation in court. This course includes a night photoshoot during week 1. In return, the course ends at noon on Friday of week 2. International Association of Identification (IAI) approved for 80 hours of training.

5 Sampling and Preservation Methods Science Needs for

Preservation and contamination. A crime scene is often preserved by setting up a blockade to control the movement in and out of a scene as well as maintaining the scene's integrity. A perimeter is taped off with barricade tape in order to keep only those necessary on-site. This is done to prevent contaminated evidence as investigators try to avoid contamination at all costs Evidence source . Origin - where was evidence when it was collected Custodial Agency . Chain of custody Provides a unique identifier so it cannot be confused with any other evidence item . Laboratory case and item number • • • Goals . of Evidence Packaging Correctly identifies evidence with respect to: Evidence description: What is it (A) As used in this section: (1)(a) Biological evidence means any of the following: (i) The contents of a sexual assault examination kit; (ii) Any item that contains blood, semen, hair, saliva, skin tissue, fingernail scrapings, bone, bodily fluids, or any other identifiable biological material that was collected as part of a criminal investigation or delinquent child investigation and that. The evidence list and photo log summarize all evidence documented at the scene. Items that were given a designation or unique identifier will be recorded on the evidence list and include a brief description and location. Photos only will be recorded on the evidence list if the item was photographed but not collected Properly groomed hair ; Another facet to the preparation phase is for the examiner to prepare to testify as an expert witness in the lifting, comparison, and identification of latent and known fingerprints. Although the inexperienced examiner may testify as a lay witness, it will be only a matter of time before the witness is called upon to.

What is Forensic Toxicology? Applications, Sub

1.Recognition- ability to distinguish important evidence from unrelated material a.Pattern recognition b.Physical property observation (how to recognize evidence that would be important) 2.Preservation- proper collection and preservation of evidence 3.Identification- use of scientific testing (test evidence and identify it V. Trace evidence A. Blood evidence i. Blood spatter recognition ii. Special handling of biological evidence iii. Collection and preservation of blood evidence iv. DNA tests and analyses B. Hair evidence i. Microscopic examination ii. Human hair vs. animal hair C. Fiber evidence i. Microscopic examination ii. Fiber compariso Physical evidence is any tangible object that can connect an offender to a crime scene. Biological evidence, which contains DNA, is a type of physical evidence. However, biological evidence is not always visible to the naked eye. DNA testing has expanded the types of useful biological evidence

Forensics CH8 Flashcards Quizle

Blood Evidence: Collection and Preservation. The collection and preservation of blood stain evidence is important because this evidence can be used to type blood or run DNA analysis.. There are two different types of blood that can be collected at a crime scene: liquid and dried blood Forensic DNA analysis can be a useful tool in aiding forensic identification because DNA is found in almost all cells of our bodies except red blood cells. Deoxyribonucleic acid is located in two different places of the cell, the nucleus; which is inherited from both parents, and the mitochondria; inherited maternally.As with fingerprints, an individual's DNA profile and characteristics are.