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Inorganic Evidence In Criminal Investigation

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Evidence used in Karen Cranky Murder Case
Forensic Evidence is the analysis of chemical evidence, which can be used as vital evidence in a crime investigation. The principles of forensics involve the Locard’s Exchange Principle, which is that a criminal will bring something and take something from the crime scene which can be used as forensic evidence. Forensic evidence is usually examined by a forensic orthodontist There are two types of forensic evidence used in the Karen Cranky Murder Case which were organic and inorganic. Inorganic evidence, mainly consists of inorganic compounds such as metallic elements. Examples of inorganic evidence include glass, paint and ballistics. Organic evidence involves any type of compound containing carbon, …show more content…

Soil evidence can be used to convict a victim due to the many varieties of soil. Soil can vary by its colour, for example red to black soil. It can vary by its texture which is how much of certain substances does the soil have, for example of sand, clay and manure. It can also vary by density of materials which can be tested by applying water to the soil. Soil can also be varied by factoring its acidity or pH. These properties of soil are compared with soil at different locations to find the matching composition, which enables investigators to spot where the soil came from and therefore where the suspect came from. The soil at the crime scene contained 40% manure, which enabled investigators to determine that the suspect was a gardener since manure is used as fertilizer for …show more content…

It works in general by isolating DNA and cutting in the VTNR regions which are the repetitive lengths in the chromosome. The fragments are then sorted depending on their size and compared with the DNA specifications on board the database. Another method of DNA fingerprinting is accounting for short tandem repeats (STR) which works by counting the repetition of short fragments of DNA. One technique of analyzing DNA is methylation analysis, which involves finding variations in Methyl components of the DNA, which alters from person to person, sometimes creating deadly diseases such as cancer. The technology involved in the analysis of DNA includes a robot used by the FBI, which analyses, DNA by cutting it into fragments and placing it on a mass spectrometer which identifies different lengths of DNA by weighing the

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Such as presenting the evidence of the two garbage cans were Herring allegedly hid the stolen stereo and car equipment form Peter’s Mustang. The CPD investigator opened two large sealed boxes containing the garbage cans that were located in the alley. The investigator explained the science to the jurors on finding fingerprints on the cans. The police apply a super glue to the areas of the cans where they think might have fingerprints and then use an LAS system which is a laser light they use to find and see fingerprints on objects. The investigator explaining the procedures on collecting the evidence did so in the simplest and clearest way possible.

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The smell in the trunk of the car was tested and contained a large amount of chloroform and key compounds of human decomposition. Evidence is evidence but not all evidence is good, but the “smell of death” that was in the trunk could have been used as good evidence to the case. Why? Because they did not have any other good evidence to prove that she killed her daughter, but that one piece of evidence alone could have convicted her of murdering her daughter.

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B) Relevant evidence, will show if the round fired into Abbot matched the weapon discovered in the car. This will link the murder weapon to the murderer C) Physical D) Circumstantial A) Statement from the next door neighbors Jack and Jill, stating they heard a gun go off in Abbot’s house. B)

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The arson evidence relates to the car crash and how the car was burned to hide the evidence. The evidence from the bite mark cleared up my client, John’s story who stated he was in a bar fight the night prior to when being questioned. The use of blood spatter helped investigators determine where the victim was killed in the cabin and how many possible killers there were. Blood detection helped discover what killed the

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This has resulted in an increased demand for prosecution to produce viable and tangible forensic evidence, in order to satisfy the high standard of proof in criminal proceedings. Donald E. Shelton conducted a survey in which he wanted to discover the amount of jurors that expected the prosecution to provide some form of scientific evidence; his findings showed that “46 percent expected to see some kind of scientific evidence in every criminal case. 22 percent expected to see DNA evidence in every criminal case. 36 percent expected to see fingerprint evidence in every criminal case. And 32 percent expected to see ballistic or other firearms laboratory evidence in every criminal case.”

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Evidence found at the place of the crime can give investigators clues to who committed the crime. For example, investigators can find footprints, fingerprints, or even the murder weapon. In fact, a hatchet was found on property, which detectives believe is the murder weapon(Allard,2013). This is important because the hatchet gives clues to who committed the crimes.

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This was achieved by identifying the suspect. According to the gel, suspect number two’s DNA was found at the crime scene. This is known because the crime scene DNA and suspect two’s DNA both traveled the same distanced. And said before DNA is very polymorphic; no two pieces of DNA will be the same when cut by the same enzyme (Edvotek, 2014). This is also shown in Hyun-Jung Choi’s lap report.

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Doing this, helpws protect the evidence and prevent cross contamination. The crime scene is the physical area where a crime is thought to of occurred and where the evidence of the said crime is thought to reside. Vital evidence to a case, can be found at a crime scene. This includes, fingerprints, DNA, foot prints, bullets, bullet casings, fibers, etc. It is important to determine if a crime has in fact been committed, if so, the officer must initiate enforcement action, by arresting or pursuing the offender or dispatching apprehension information.

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Science has come a long way over the years. It has helped countless every day struggles and cure diseases most commonly found. What you don’t hear about however is the advancement of forensic science. Forensic science has helped solve countless cases of murder, rape, and sexual assault. In the case of John Joubert, it helped solve the murders of three young boys with one small piece of evidence that linked him directly to the crime.

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Then, interrogators can state that they did find physical evidence at the scene of the crime and they are checking to see it is a match to the suspect. When this method is used, it does not back a suspect into a corner with accusations that the physical evidence is a match to them, but just states that some type of physical evidence was collected. This allows interrogators to view the reaction of the news to the suspects. A suspect who is guilty may start to offer explanations of how that is not possible or even tell the police that they are lying.

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D Assessment DNA technology Forensic testing 24.11.2014 Marius Martinsen 10D Introduction: I have chosen to investigate Forensic testing, it is also known as DNA profiling or genetic fingerprinting. During this essay I will discuss what the disadvantages and what the advantages of forensic testing are. I will also talk about how forensic testing is carried out. Forensic testing is used to identify an individual by using the DNA sequences of that person.

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“Physical evidence usually involves objects found at the scene of a crime. Physical evidence may consist of all sorts of prints such as fingerprints, footprints, handprints, tidemarks, cut marks, tool marks, etc.” (US Legal, 2015). Examining physical evidence found at the crime scene allows investigators to link related crimes through forensic analysis to establish a crime series. Offender Description Offender description is another important factor to link offenders to a crime series.

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Forensic science pioneer Dr. Edmond Locard explains that witness credibility varies by the witness and the incident, along with the type of senses that perceived the episode. Touch, odor and taste exhibit low threshold of evidential value. The direction of sounds and their source are also faulty and subjective. Even visual perceptions are subject to significant errors in estimates of distance and sizes of crowds. Add tricks of memory and the unremitting creations of the imagination, the weaknesses of the senses are further complicated.

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When a crime is committed there are multiple ways investigators can gather their evidence. Testimonies, direct evidence, circumstantial, and even physical evidence; theses are all different yet effective types of evidence investigators can use. Although none of these methods are incorrect ways of collecting evidence, in “Forensic: Evidence, Clues, and Investigation” by Andrea Campbell, she states that forensic evidence is the most important and useful. Forensic evidence and physical evidence are the same thing. It is the physical characteristics of someone or something that has been left behind and can be traced back to them.

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Outline of Forensic Odentology: Forensic odentology brings systematic methodologies to support in documentation of victims associated to criminality or accident. To assist with forensic odentology, odentologists prerequisite to be aware of the importance of keeping precise, present, comprehensive & understandble dental records for the use of recognition. The preceding information will provide a general idea of forensic odentology history, numerous recognition procedures developed & how dental experts can become involved. Assignment Areas: • Discuss forensic odentology history. • Identify & describe recognition approaches utilized in forensic odentology.

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