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Problems in Society

By chinabarbie25 Feb 27, 2013 779 Words
1 What is physical evidence? . The value of properly collected physical evidence followed by examination and interpretation by the forensic. 2 What are elimination prints? Elimination prints are a set of the finger and palm prints given by a victim of a crime or anyone else who may have had legitimate access. 3 What is a corpus delicti? The foundation or material substance of a crime. 4 What is a standard of comparison used for? Usually, the control variable is used to compare an experiment and their experimental . 5 What are the two-prong standard established or required by Daubert? In Daubert, the Supreme Court ordered federal trial judges to be the gatekeepers of scientific evidence. Trial judges must now evaluate proffered expert witnesses to determine whether their testimony is both relevant and reliable a two-pronged test of admissibility. 6 Explain in details, what is forensic science? Forensic science technicians help investigate crimes by collecting and analyzing physical evidence. 7 What is ballistics and what does it attempt to prove? Forensic ballistics entails the examination of bullets and firearms in an attempt to identify particular weapons used. 8 When should latent fingerprints be photographed? Latent fingerprints are invisible to the naked eye under ordinary light, but. Latent prints develop immediately and should be photograph. 9 What does maintaining the chain of custody evidence refers to and why is it so important What are the most common errors made in collecting evidence? Consequently, in almost every legal matter, critical and relevant evidence will be found on a computer. Proper collection and examination of computer evidence is critical to avoid spoliation, to preserve the evidence, and to manage costs. If proper procedure is not followed during the acquisition of evidence, any data recovered may lose its admissibility as evidence. Below are some of the common errors made by organizations with regard to computer forensics.

10 What are the most common errors made in collecting evidence? obviously made serious mistakes that may have resulted in the . ognize, document, and collect evidence at the scene of a crime. Solving common examples of trace evidence include Pet hair on your . Most physical evidence determination may be made of a primary crime scene and secondary .

11 What surface provides the best opportunity for obtaining fingerprints? non-porous surfaces. 12 Describe DNA and how is it used in criminal investigations. DNA is used in Criminal Investigations. It describe the basic science of DNA and how it is analyzed in crime . DNA evidence found at a crime scene can identify a suspect but can also be easily contaminated during collection.

13What cells from the body can DNA profiling be done on? Body fluids such as saliva and perspiration. 14 How is it possible to collect scent from a crime scene? Explain. In order to use the scent from a crime scene with any dog, the scent must first be collected in some manner . There are a number of ways scent can be collected. The use of the STU makes it possible to obtain scent from virtually any object. In the case of a missing child, there may be multiple crime scenes to . trained, scent-discriminating bloodhound as soon as possible after an abduction of a child occurs.

15Evidence established by law is called? prima facie evidence. 16 Explain what happen when evidence becomes cross contaminated. Moisture allows the growth of microorganisms which can destroy or alter evidence. Any items which may cross contaminate each other must be packaged .

17 List and describe the evidence that would be most helpful in showing that a specific person was at a crime scene: Wherever a person steps, whatever a person touches, whatever a person leaves, even unconsciously, will serve as a silent witness against them. Not only their fingerprints or their footprints, but their hair, the fibers from their clothes, the glass he breaks, the tool mark their leaves, the paint their scratches, the blood or semen their deposits or collects. 18 What happen to evidence when it is no longer needed? Seek to destroy the evidence. 19 What is the most frequently located microscopic evidence found at a crime scene? A majority of evidence examined by the trace evidence section is microscopic in nature. This section relies heavily on the use of various types of microscopes to examine physical evidence. An initial examination to detect this microscopic evidence is conducted using a stereomicroscope. The trace evidence examiner may sort through debris removed from an article of evidence or may examine the article directly.

20 What infectious disease poses the least threat to law enforcement officers? AIDS virus on the job. Tuberculosis , meningitis and hepatitis pose greater threats.

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