In forensic science, there are multiple things that can point someone as a criminal. In the case of Wayne Williams and the Atlanta Child Murders, hair and fibers were used to convict Wayne Williams. A single hair can contain multiple things that can point a individual to a crime. Hair has certain characteristics that can pinpoint to whom the hair belongs to. Hair of a human will be much thinner compared to animal hair.…
The key facts and critical issues of JonBenet Ramsey's death, in my opinion, on December 26, 1996, a little girl by the name of JonBenet Ramsey was mysteriously murdered in her parent’s home located in Boulder, Colorado. JonBenet Ramsey was a beauty pageant queen born to John and Patsy Ramsey in Atlanta, Georgia on August 6, 1990. JonBenet was six at the time of her murder. (Safestein, 2015) She was hit in the head with a blunt object and strangled to her death.…
DNA Overturned Douglas Prade shot death of ex-wife in 1997. The evidence found on the defendant vehicle was blood on his lab coat; after 3 years examine the bite-mark by Margo Prade’s lab. Both side always have agreed there was struggle inside a Dr. Prade minivan and that the killer bit her, leaving an impression the upper –left arm through her lab coat and blouse. That was crucial crime scene evidence on the morning of slaying (Mayer,2015). The defendant was sentenced to live in the prison.…
Two of the most important standards regarding expert witnesses are the Frye and Daubert standards. Those will be discussed in detail along with the M’Naghten and Durham rules. Following the explanation of the two standards and the two rules, an article by Jennifer McDougal and Ray Bull will be analyzed and related to the discussion of the validity of the forensic interview. The Frye standard originated in during the 1923 appellate court case Frye v. United States.…
Prong 2: The vast development of forensics since 1971 could now easily intimidate D.B. Cooper out of attempting this crime again. Technology back then was too underdeveloped to catch a calculated criminal like D.B. Cooper. DNA wouldn’t be used forensically for until nearly 15 years after the hijacking. Had this technology been around, D.B Cooper would be rotting in jail as we speak.…
However, standard forensic techniques can help tremendously in solving cases no matter what obstacle an investigator may face. Some of the biggest challenges they faced was with the interference of crucial evidence. The FBI forensic team were not able to fully process some important samples that were taken from the Mexican police. MFJP did not let them process the evidence until the fall of the year 1985, through agreement between the U.S. and Mexican government (Saferstein, 2015).…
Based largely on this compelling statistic, drawn from the testimony of an analyst with the Federal Bureau of Investigation, Mr. Tribble, 17 at the time, was convicted of the crime and sentenced to 20 years to life. Mr. Tribble’s case, along with the exoneration of two other men who served decades in prison based on faulty hair-sample analysis, spurred the F.B.I. to conduct a sweeping post-conviction review of 2,500 cases in which its hair-sample lab reported a match. The preliminary results of that review, which Spencer Hsu of The Washington Post reported last week, are breathtaking: out of 268 criminal cases nationwide between 1985 and 1999, the bureaus elite forensic hair-sample analysts testified wrongly in favor of the prosecution, in…
In my opinion the validity of scientific techniques and the underlying reason behind an expert’s testimony, should be applied to facts of the case. Although the rules of evidence that involves the Daubert standard, could be a challenge to prove for forensic experts, the admissibility of evidence will actually be valid upon scientific techniques that have been experimented and tested with publications and peer reviews to back it up. The problem with Frye is that with the advances in technology and methodology in forensic applications the reliability of such evidence could be based off the mistrial and false rulings of many cases instead of techniques that were tested, peer reviewed, have known potential error rates, etc. Therefore emphasizes is being put on the importance of determining to reliability of scientific evidence by the origin of its scientific method. The scientific evidence will less likely be misused or falsified to sway one side or the other.…
It can only be used as corroboration to strengthen a case. The limitations of hair analysis can be seen through the fact that it can only provide class evidence and cannot be individualized. This limits its ability to convict a supposed criminal, based on hair evidence only. The forensic fibre analysis in this case was not accurate or adequate to convict Guy. The fibres that were said to be found on Christine did not belong to Guy, however the jury was told that the fibres matched fibres that were found from Guy’s home and car.…
In the course of recent years, the forensic sciences have made sensational scientific leaps forward (DNA writing, physical confirmation databanks as well as new scientific instrumentation) yet researches are expected to survey the commitment of such headways on the part and effect of scientific proof in criminal case preparing. The aim of this paper is to demonstrate the use of measurement instrumentation in a murder case. It emphasises the instruments that were used in the murder. For this reason a murder case has been evaluated. 1.1.…
This suggests that the forensics used were perhaps inaccurate, this may have been due to the fact that Spilsbury was so highly respected that many people refrained from further testing. Another flaw was the fact that this science was used to convict Crippen but not to catch him - it illustrates how policing still required small…
As of now Timothy Bridges based on an Erroneous Microscopic Hair Evidence has been exonerated after wrongly serving 25 years in prison. Showing that errors have been made more than just a few times. With hair and fibers you can help to identify a suspects, identify crime victims, Tell what crime that has been committed, you can also pinpoint the victim or a suspect location. Forensic Hair analysis has become more prevalent and widespread due to its usefulness in criminal court cases because it is more resistant to decay meaning hair can remain intact far longer than any other evidence and one of the most frequently found pieces of evidence at the scene of a violent crime. Through hair analysis a variety of things can be determined If the hair is human or animal, Where the hair came from exactly such as the head hair, eyebrow and eyelash hair, beard and moustache hair, body hair, pubic hair and axillary hair.…
The chain of custody is the continuous documenting of evidence from the initial discovery, in situ, up it is used in the courtroom. Through each step of the process: labeling, collecting, preserving, transferring, and analyzing,each piece of evidence, including locations and all those involved in handling the materials are systematically logged. This is important for forensic anthropologist and archaeologist because not only does it keep material evidence extremely organized but if done efficiently, if for any reason the evidence needs to be reexamined or the site revisited, because of scrupulous documenting, these tasks can be easily achieved. It’s also important because in the courtroom, evidence plays a pivotal role for or against the defendant.…
Thesis: Faulty forensics is a vital issue in the United States' justice system, how ever there is a solution to this issue. Faulty forensics is a vital issue in the United States, and thousand of faulty forensics has been found in the US. Faulty forensics is application of science to criminal case, mainly during criminal investigation, and according to legal standards of inadequate. Forensic expert sometimes are careless with evidence or make up false analysis and wrongfully convict innocent people People that are poor or have bad lawyering are victims of faulty forensics because they don’t have the money to get a good lawyer.…
There are multiple stages of the criminal court process that create a burden of proof that contribute to criminal justice investigations. Every court process begins with a crime allegedly committed to determining its legal status. Law enforcement and detectives determine if the crime was illegal or legal due to the investigations. They investigate a crime by interviewing victims, witnesses, and suspects. They also gather physical evidence by taking pictures, fingerprint, and DNA samples.…