PREPARATION OF MATERIALS FOR DIAGNOSTIC AND SITUATIONAL EXPERT RESEARCH OF WEAPONS, CARTRIDGES AND TRACES OF ITS USE

Criminalistics and Forensics ◽

10.33994/kndise.2020.66.65 ◽

2021 ◽

pp. 878-888

Author(s):

I. Samoilenko ◽

V. Koloniuk

Keyword(s):

Preliminary Data ◽

Crime Scene ◽

Blood Stains

The article considers the issues of preparing materials for sending it to carry out diagnostic and situational expert research of weapons, cartridges and traces of its use, the work of an investigator or a person acting as an investigator during an inspection of the crime scene. It is also pointed how to identify, correctly document and seize objects and materials for referrals for expert research, identification, preliminary inspection and assessment of objects and materials found during the inspection of the crime scene, its documentation and seizure. The correct examination and assessment of weapons and cartridges makes it possible to obtain information about preliminary data on the type, kind, model of weapons and cartridges, taking into account the design of objects by external similarities with known types and models of weapons, samples of cartridges. It is also makes possible to identify the external state of weapons and cartridges, the presence or absence of individual parts and mechanisms of the weapon; loaded, equipped with a weapon; destruction of parts of weapons, elements of cartridges; deformation of weapons and cartridges; presence of corrosion, pollution, etc. The presence of outside traces on weapons and cartridges that are significant for further investigation - this may be contamination, including blood stains, layers, etc., which will be taken into account when conducting diagnostic and situational expert research. There are described general methods and rules of preparation and packing of the objects revealed at inspection of a crime scene.

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Hyperspectral imaging of the crime scene for detection and identification of blood stains

10.1117/12.2021509 ◽

2013 ◽

Cited By ~ 1

Author(s):

G. J. Edelman ◽

T. G. van Leeuwen ◽

M. C. G. Aalders

Keyword(s):

Hyperspectral Imaging ◽

Crime Scene ◽

Blood Stains ◽

Detection And Identification

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Hyperspectral imaging for the age estimation of blood stains at the crime scene

Forensic Science International ◽

10.1016/j.forsciint.2012.08.003 ◽

2012 ◽

Vol 223 (1-3) ◽

pp. 72-77 ◽

Cited By ~ 57

Author(s):

Gerda Edelman ◽

Ton G. van Leeuwen ◽

Maurice C.G. Aalders

Keyword(s):

Hyperspectral Imaging ◽

Age Estimation ◽

Crime Scene ◽

Blood Stains

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Blood pattern analysis—a review and new findings

Egyptian Journal of Forensic Sciences ◽

10.1186/s41935-021-00224-8 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Prashant Singh ◽

Nandini Gupta ◽

Ravi Rathi

Keyword(s):

Pattern Analysis ◽

Experimental Finding ◽

Crime Scene ◽

Blood Stains ◽

Future Studies ◽

Laboratory Conditions ◽

New Findings ◽

The University ◽

Blood Pattern Analysis ◽

Source Of Information

Abstract Background Blood is one of the most common pieces of evidence encountered at the crime scene. Due to the viscous nature of blood, unique bloodstain patterns are formed which when studied can reveal what might have happened at the scene of the crime. Blood pattern analysis (BPA), i.e., the study of shape, size, and nature of bloodstain. The focus of this paper is to understand blood and BPA. An experimental finding to understand blood stain formation using Awlata dye was conducted within the university premises under laboratory conditions. Awlata (Alta), an Indian dye used for grooming of women, was used to create fake blood stains to understand the formation of bloodstains with respect to varying heights, and their relation with spines and satellite stains was determined. Results When the height of dropping fake blood increased, the distance of satellite stains emerging from the fake blood stains was also increasing. From the experimental finding, it was found that satellite stains were directly proportional to height of blood stain and spines were inversely proportional. Conclusion It can be concluded that blood is a vital source of information and when interpreted correctly it can be used as a source of information that can aid in investigations. Thus, a relation between formation of blood stains with relation to height was established. This finding using fake blood stains can help in carrying out future studies.

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Pemeriksaan Bercak Darah pada Kain yang Direndam & Dikubur Menggunakan Tes Teichmann

Jurnal Ilmu Kesehatan Indonesia ◽

10.25077/jikesi.v2i1.299 ◽

2021 ◽

Vol 2 (1) ◽

pp. 29-32

Author(s):

Puji Anugrah ◽

Citra Manela ◽

Syamel Muhammad

Keyword(s):

Experimental Study ◽

Study Design ◽

Crime Scene ◽

Descriptive Study ◽

Blood Stains ◽

Blood Spots ◽

Confirmation Test ◽

Research Type ◽

Positive Results ◽

Experimental Study Design

Background. Blood is the most important physical evidences and often found at crime scene. The Teichmann test is a confirmation test to check whether the spot really a blood.Objective. This study aims to identify the bloodstain on cloth soaked in water and buried in the ground using Teichmann test.Method. The research type is a descriptive study with a laboratory experimental study design. The sample of this study was a cloth dripped with blood, 27 samples are immersed in a bucket filled with water and 27 other samples are buried in the ground with a depth of 20 cm. The examination using the Teichmann test will be carried out on the 6th to the 14th day of exposure.Result. From the research that has been done, the results of the Teichmann test were positive on blood spots on cloth soaked in water and buried in the ground on the 6th to 9th day of exposure. Positive results indicate the formation of hemin hydrochloride crystals in the form of blackish-brown rods.Conclusion. The conclusion of this study is hemin hydrochloride crystals can still be found in blood stains on cloth soaked in water and buried in the soil using the Teichmann test but limited to the 9th day of exposure.

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Profil DNA Forensik pada Barang Bukti Dua Kasus Pembunuhan di Indonesia

Jurnal Sumberdaya Hayati ◽

10.29244/jsdh.4.2.48-56 ◽

2020 ◽

Vol 4 (2) ◽

pp. 48-56

Author(s):

PUJI RIANTI ◽

ELISA CRISTIN ◽

PUTUT TJAHJO WIDODO

Keyword(s):

Crime Scene ◽

Applied Science ◽

Dna Profiling ◽

International Standards ◽

Buccal Swab ◽

Blood Stains ◽

Str Markers ◽

Human Dna ◽

Dna Profiles ◽

National Police

DNA technology for profiling purposes has been used in many basic and applied science. One of the emerged applied science in genetics is it’s uses in solving crime cases. Homicide became one of highest crime cases in Indonesia. Solving its cases through DNA profiling technology using items of evidence as tool is needed. Here, we report the profiling of human DNA from several items of evidence available in the crime scene and the suspect. We used items of evidence from study cases no. 18098 and 18101, based on the legal permission of Indonesia’s National Police. We used 21 international standards of human STR markers, one sex-determining marker, one Y STR marker, and one independent Y marker to developed human alleles from tissue and blood stains left and/or shred on the victims, soap bottles, knifes, victim’s clothes and ropes as well as the buccal swab of the crime suspect. Our alleles identification matched between the victim and the crime suspect in both cases with the accuracy of DNA profiles compatibility at 99.99%. Detection of DNA profiling is depending on the evidence and time of storage which are influence by environment that can lead to the process of decayed and/or contaminated.

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An Introductory Examination of Speech Disfluencies in Spanish–English Bilingual Children Who Do and Do Not Stutter During Narratives

Perspectives of the ASHA Special Interest Groups ◽

10.1044/2019_persp-19-00040 ◽

2020 ◽

Vol 5 (1) ◽

pp. 131-141

Author(s):

Cristina Rincon ◽

Kia Noelle Johnson ◽

Courtney Byrd

Keyword(s):

Diagnostic Criteria ◽

Preliminary Data ◽

Diagnostic Information ◽

English Speakers ◽

Bilingual Children ◽

English Bilingual ◽

Developmental Stuttering ◽

Mean Length Of Utterance

Purpose The purpose of this study is to examine the frequency and type of speech disfluencies (stuttering-like and nonstuttering-like) in bilingual Spanish–English (SE) children who stutter (CWS) to SE children who do not stutter (CWNS) during narrative samples elicited in Spanish and English to provide further diagnostic information for this population and preliminary data toward an expansion of this study. Method Participants included six bilingual SE children (three CWS, three CWNS) ranging in age from 5 years to 7;5 (years;months) and recruited from the surrounding Houston, Texas area. Participants provided a narrative sample in English and Spanish. The frequency of speech disfluencies was tabulated, and mean length of utterance was measured for each sample. Results Results indicate that both talker groups exceed the diagnostic criteria typically used for developmental stuttering. Regardless of the language being spoken, CWS participants had a frequency of stuttering-like speech disfluencies that met or exceeded the diagnostic criteria for developmental stuttering that is based on monolingual English speakers. The CWNS participants varied in meeting the criteria depending on the language being spoken, with one of the three CWNS exceeding the criteria in both languages and one exceeding the criteria for percentage of stuttering-like speech disfluencies in one language. Conclusion Findings from this study contribute to the development of more appropriate diagnostic criteria for bilingual SE-speaking children to aid in the reduction of misdiagnoses of stuttering in this population.

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