Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
The effectiveness and limitations of DNA in criminal investigations
Crimes solved by dna
Amanda knox essay guilt
Don’t take our word for it - see why 10 million students trust us with their essay needs.
“Either I’m a psychopath in sheep’s clothing, or I am you” (Gittens). Amanda Knox stated in her new documentary. In the court case of Meredith Kercher’s murder, Amanda Knox’s profile developed from a student studying abroad to a cold-blooded killer. Amanda Knox was accused and acquitted of the murder of Kercher. Debate continues about the case, as the evidence from both sides is highly disputable. In the controversial court case of Meredith Kercher, the innocent verdict correctly acquitted Amanda Knox for three reasons: DNA proved unreliable, no witnesses could testify, and investigators mishandled evidence. The assumed murder weapon received improper testing, and DNA found on the knife proved unreliable. No blood was discovered on the knife
The result was negative. There was no blood on the knife” (Truth… Knife). It has been believed that there was blood found on the knife; however, this is a false statement. There was no blood on the knife, which makes committing a crime with it near impossible. The knife was also improperly tested while searching for DNA on the blade. Mark C. Waterbury, Ph.D, stated that no control experiments were performed on the knife before testing, making contamination from the lab very possible (Truth…Knife). The lab that tested the knife handled large amounts of Meredith’s DNA at the time, making cross contamination very possible. When the knife arrived at the lab, the blade did not contain any of Meredith Kercher’s DNA. Patrizia Stefanoni was the scientist that performed these DNA tests, and she used a very new, unproven technique called low copy number DNA profiling, which she was not certified to do. This discredits the reliability of the tests done in Stefanoni’s lab, as she used unproven techniques with improper equipment in an improper laboratory. “Touch” DNA was found on the knife, but no blood was found. According to Elizabeth A. Johnson, Ph.D, if a knife
Antonio Curatolo was the only person that claimed to have seen Amanda and Raffaele near the scene of the murder shortly before. According to the organization Injustice in Perugia, “Curatolo testified nine times that he saw Amanda and Raffaele hanging around outside from 11:30 pm to 12:00 am” (A Witness). This testimony contradicted the timeline that the prosecution attempted to prove. The prosecution called this witness, and it backfired, as Curatolo actually disproved their evidence. This evidence gives the defense, and Amanda Knox, a foothold against the prosecution. Antonio Curatolo was deemed an unreliable witness. Injustice in Perugia claims that Curatolo’s testimony after the conviction confirms what the defense had been trying to say the whole time; that Curatolo was not a reliable witness, and that the prosecution would not be able to base their whole case on this one witness (A Witness). Anthony Curatolo admitted to using heroin on a regular basis, but the court still accepted his testimony. This was the first warning sign of mendacious behavior. Once his testimony was denied, no witnesses put Amanda and Raffaele at the scene of the murder in the prosecution’s time frame. The court did not base its decision on Curatolo’s testimony, but rather on what it wanted to hear. The court rejected nine out of ten statements made by Anthony Curatolo, all nine of which provided an alibi for Amanda and Raffaele. Judge Massei
Her body had been bathed and thoroughly washed before being placed, it was also completely drained of blood [2]. Two detectives were assigned to the case: Harry Hanson and Finis Brown. When they and the police arrived at the crime scene, it was already swarming with people, gawkers and reporters. The entire situation was out of hand and crowded, everyone trampling all over in hopes of good evidence. One thing they did report finding was a nearby cement block with watery blood on it, tire tracks and a heel print on the ground.
The Anthony family’s home computer hard drive had searches of “chloroform inhalation,” and “home weapons” on it. Both sides vigorously addressed the location and condition of Caylee’s decomposed body, as well as the odor that came from Casey’s trunk. Casey’s parents took the stand to testify and her father denied all sexual abuse allegations. For closing arguments, both sides pointed out the gaps in the other’s story. On July 5, 2011, after just one day of deliberating, the jury found Casey Anthony not guilty of the murder of her daughter, Caylee Anthony. She found guilty of four counts of providing false information to the police. After factoring in time served, Casey had 10 days of jail time left.
Millions of people venture out of the United States to study abroad each year, but not all have a pleasurable experience. This was just the case for the 22 year old, Amanda Marie Knox… Perugia, Italy, 2007, Amanda Knox found herself in a judicial system knot. Even though computer documentations, fallacious accusations, and the fourth estate cause many to have doubts over the Amanda Knox case, the paucity of evidence, witnesses, and the legal workings within the case prove Ms. Knox did not commit the gruesome slashing of her friend and roommate Meredith Kercher.
As the defense has so diligently pointed out, it is indeed a sad day in the history of our judicial system when an innocent woman is sent to her death for a crime that she did not commit. I, for one, am not planning on having that momentous occasion take place today, and this is for one simple reason: Justine is guilty. While the defense has done nothing but parade Justine’s friends in front of you saying how much of a “nice person” she is, I, the prosecution, have presented you with cold, hard facts, all of which point to the guilt of the defendant.
Summary:In 1997 the body of a 14-year old girl was found in a Racine County(Wisconsin) marsh.Her name was Amber Gail Creek.Racine County identified the suspect as 36-year old James P. Eaton. For seventeen years investigators analyzed all evidence in the death of Amber, but they finally got a break in the case when investigators found fingerprints on the black plastic bag used to suffocate Amber. Investigators were able to track Eaton and pull one of his prints off one of his cigarettes. The fingerprints matched those found on the plastic bag and on the victim’s body.
The prosecution says DNA tests place Simpson's genetic markers on the drops of blood leading away from the bodies. There were also blood samples, similar to Simpson's and the victims, found on O.J.'s Bronco truck. Simpson's blood was also found on his driveway and his foyer. The prosecution says Simpson cut his hand during the murder. The defence says Simpson cut his hand when he reached for his phone in his Bronco and later cut his hand on a glass. The main focus of the defence is the contamination of physical evidence.
Sample from the steering wheel showed a mix DNA sample and Dr Whitaker was unable to exclude the Peter Falconio, Ms Lees or the accused as being one of the main contributors. However, a mix profile found on the gear stick knob would be best explained if there were two sources of DNA. In his assessment of DNA bands, only small amount came from the deceased and the rest were all represented in the profile of the accused. Objection was raised from the defence concerning the evidence from the steering wheels and gear stick knob were contaminated by Dr Whitaker while he was carrying out his testing and was not available for them to conduct an independent test on behalf of the accused. Nevertheless, objection was declined because Dr Whitaker pointed out his methodology didn’t alter or destroy the DNA in anyway. Another issue was brought up regards to the validity and reliability of “Low Copy Number” technique. Senior counsel who appealed for the accused, Dr Katrin Both referred to the above technique as “very dangerous” and “pushing science to its limit” and identified several different areas which concerned her. Plus the fact
Sudbury is a known place for 2 local gangs that have been fighting over the land for years now. Police investigating has concluded that the cause of death a major loss of blood. The coroner told police that he would have survived his injury if he had gotten to the hospital in time. He also added a brief profile of the killer; left-handed, caucasian, brown hair, and male. The blade in question is still missing following a police investigation.
Sandy Hearst should not be liable for any damages of the car crash. Sandy wasn't aware Dana Ivy was drunk when she left the party. Sandy put forths many times in her statement that Dana wasn't drunk, just outgoing. As stated in her testimony, Sandy said “ At one point was dancing on a table, but Dana has an outgoing personality” (Sandy Hearst) “ I know Dana wasn't drunk when leaving the party” (Sandy Hearst). Many times in Sandys and Dana's statement, they advise Dana wasn't drunk, the fact that the host plus the person suspected as drunk both advise Dana wasn't drunk refers to being a true statement. This substantiates the fact that Dana was the one who was suspected. Combined this with she knows her own body, indeed this means she wasn't drunk.
Lupton (1999) likens community to a body with tightly controlled boundaries where behaviour is regulated to maintain order, and anomalies or ambiguities and the crossing of boundaries are perceived as “risky”. Lupton also discusses Mary Douglas’ ideas on the social function of individual perceptions of societal dangers. Douglas (1966) maintained that individuals tend to associate societal harms with conduct that transgresses societal norms, and that this tendency promotes certain social structures, both by imbuing a society’s members with aversions to subversive behaviour and by focusing resentment and blame on those who defy such institutions.
It so amusing that a supposedly certified Dr. Jean Emans testified “that an object could touch the hymen on the way to trying to find the anus.” In contrast to that statement, it was reported that the butcher knife was able to pass delicate tissues without any signs of injury. Side note, as a medical doctor reading this testimony, Dr. Jean Emans should have saw the many red flags in this confession. The fact it was a small girl and a butcher knife, it is common sense that there would have been a least small signs of injuries of
Lyle, D.P., M.D. “Chapter 13: Bloodstains: Patterns Tell the Story,” Forensics: A Guide for Writers (Howdunit), Writer’s Digest Books, Cincinnati, OH (2008), pp. 285–302.
According to the Innocence Project (2006), “On September 17, 2001, Chad wrote the Innocence Project in New York, which, in 2003, enlisted pro bono counsel from Holland & Knight to file a motion for DNA testing on Tina’s fingernail scrapings.” The state had tested the DNA that was under Tina’s nail from the first case but at that time it was inadequate and could not be tested. It was not until now that we have the technology capable enough to test it. In June 2004, the test came back negative to matching both Jeremey and Chain Heins but did come from an unknown male. The state argued that it was not enough to overturn the conviction so Chad’s attorney asked the state to do some further testing and to compare the DNA from under the fingernails to the hairs that was found on Tina’s body. It was in 2005 that the Florida Department of Law Enforcement confirmed that there was a match between the DNA under Tina’s nail and the pubic hair. According to LaForgia (2006), “this particular type of DNA, the report stated, was found in only about 8 percent of Caucasian American men.” During this process there was a new piece of evidence that Chad’s attorney had learned about during the appeals process, a fingerprint. There were some accusations that the prosecutors never disclosed this information about this third fingerprint and if they did it was too late. The jurors did not even know about this fingerprint and if they did this could have changed the whole case. This fingerprint was found on several objects that included the smoke detector, a piece of glass, and the bathroom sink. It was soon discovered that this fingerprint matched with the DNA found on the bedsheets that Tina was on. This was finally enough evidence to help Chad Heins become exonerated in
In this position paper I have chosen Bloodsworth v. State ~ 76 Md.App. 23, 543 A.2d 382 case to discuss on whether or not the forensic evidence that was submitted for this case should have been admissible or not. To understand whether or not the evidence should be admissible or not we first have to know what the case is about.
A 15 year old girl name Lynda Mann was abducted in Narborough, England. The following day, the police found her body, and learned that she was raped and murdered. Three years later, another young woman had the same thing done to her just like Lynda Mann; she was abducted, raped and murdered. A man named Richard Buckland confessed to the second murder. A DNA analyst performed a method known as genetic fingerprinting. Through this, there was no match to the murder. This meant that Buckland was not guilty of the crime he confessed to.