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

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.

Features of establishing the presence of blood in old stains by the method of thin-layer vertical chromatography

Due to the fact that the bloodstain pattern analysis takes the first place in the structure of the study of biological objects, the question of the study of blood patterns is relevant today. The main task (that will allow to solve the following, which puts the investigation before the experts), is to prove that these patterns, which are examined, contain blood, (regardless of their remoteness, attempts to destroy patterns of blood), find out its types or refute traces of blood. If the expert fails to prove the presence of blood, he must refuse to address the following issues. Otherwise, the expert may obtain results that will ultimately lead him to an erroneous conclusion. The article considers options for extraction of old blood stains in order to establish the presence of blood by the method of thin-layer vertical chromatography. This question is still relevant, as biological material can change under the influence of environmental factors and time and this can be an obstacle to establishing the fact of its presence on physical evidence, and also it can do harm to the quality of the study and the correctness of the conclusions, made as a result of the study. In order to select substances, that could provide rapid extraction of old blood stains, a study was performed using weak solutions of alkalis and acids and subsequent determination of the presence of blood by thin layer vertical chromatography. In immunological studies, there have been cases where blood crusts on non-hygroscopic surfaces under the influence of natural factors (such as high temperatures and direct sun rays) have not been extracted in saline and distilled water for several days. In addition, when using known blood samples in the reactions, the dependence of the saturation of the extracts on the age of the samples and the time of their extraction. These observations prompted researches in the sector of biological research and accounting of the Cherkasy NDEKTs of the Ministry of Internal Affairs on methods for extracting old blood stains, which would allow to detect blood in the shortest possible time by the method of thin-layer vertical chromatography.

Blood pattern analysis—a review and new findings

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.

Effect of yoga and naturopathy on disease activity and symptom burdens in a patient with active ulcerative colitis: a case report

Objectives Ulcerative colitis (UC) is a chronic idiopathic inflammatory disease that affects the large bowel. The objective of this study is to find the effect of yoga and naturopathy (YN) in a patient with active moderate pancolitis. Case presentation An 18-year old unmarried female diagnosed with UC in 2017. Patient’s symptoms began with abdominal pain, nausea, vomiting and diarrhea with/without blood stains more than seven times a day, daily. The symptoms reduced after taking regular conventional medication for a period of one-year. However, in February-2019, the patient visited our hospital with the same complaints and received 21-days of YN treatments. Results showed a better reduction in the abdominal pain, disease activity, stress and depression and a better improvement in hemoglobin levels, quality of sleep, and quality of life with no adverse effects. Conclusions YN could be considered as an alternative therapy in the management of UC. However, further studies are required to warrant this effect.

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

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.

Profil DNA Forensik pada Barang Bukti Dua Kasus Pembunuhan di Indonesia

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.