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Application of forensic science
Application of forensic science
Use of forensics in investigation
Don’t take our word for it - see why 10 million students trust us with their essay needs.
More handpicked essays just for you.
Application of forensic science
Application of forensic science
Use of forensics in investigation
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Case: George Perrot Victim:78-year-old woman who lived in Springfield Suspects: George Perrot George Perrot spent almost 30 years in prison thanks to a single hair. It was discovered by an FBI agent on the bedsheet of a 78 year old woman who had been raped by a burglar in her home in Springfield, Massachusetts, in 1985. George Perrot was put on trial because of the hair, there was no physical evidence of semen and no blood, so the hair was the only way of tying him to this case. The FBI agent Wayne Oakes is an expert in hair and textile fibers. The FBI agent referred to the medulla, the cortex and the cuticle of hair to help with identifying the hair to George Perrot.
In September of 1961, a woman from District of Columbia had an intruder break into her apartment. While the invader of the home was there, they had taken her wallet, and also raped the woman. During the investigation of the crime, the police had found some latent fingerprints in the apartment. The police then established and processed the prints. The prints were then connected back to 16 year old Morris A. Kent.
The murder case of Leanne Holland exposed the ways in which forensic science were both a help and a hindrance to the conviction and subsequent overturning of the verdict, against Graham Stafford. The body of 12-year-old Leanne Holland was found battered and partially naked in scrub 30m off Redbank Plains Rd on September 26, 1991. She went missing on Monday morning on September 23, 1991. According to descriptions, she was last seen wearing a long-sleeved purple jumper, black skirt and no shoes as she headed towards shops just 500m from her Alice St home in Goodna.
There was no blood. And so there was no way to conduct a conclusive DNA test. But there was that strand of hair. At a key stage in the 1992 rape and burglary trial.
Wayne Williams was found guilty of the killing of two people. Even years after William’s still tries to persuade the idea of him being innocent. Just like fingerprints, hair analysis is following the same path. I think that DNA fingerprints will become bigger and more accurate of accusing killers, the use of hair analysis will decrease, but I do not think hair analysis should be taken away.
Case: 1977 Cold Case Murder (Hair) Victim: James Anagnos Suspects: Frank Wright How did the hair sample help? At first the hair sample could not match back to Frank Wright. It took years for new technology to finally match Wright.
The perpetrator left a fingerprint on the doorknob of one of the victim’s bedroom doors and a herringbone pattern tennis shoe print in one of the victim’s front yard near the front door. The police questioned about thirty to forty men in the area and focused on one main suspect, Hayes. The police went to Hayes home and requested a fingerprint, and Hayes
With the technology of that time, they could not prove that the hair belonged to Wright. Until 2010, the hair was sent to a private lab in Texas, the DNA test confirmed that the hair belonged to Frank Wright. 2.Alejandro Henriquez Victims:Shamira Bello, Jessica Guzman, Lisa Ann Rodriguez Suspect: Alejandro Henriquez How the fiber made a connection for the case: The fibers were found in 3 victims’ body matched those in a vacuum cleaner in Henriquez's apartment or on the spool of red thread that according to other testimony had been found in his apartment.
A cab driver was robbed, and killed in front of his home and police believe the suspect was a seventeen year old buy Santae tribble. The hair from the scene was matched to Tribble’s DNA even though Tribble maintained his innocence. He was found guilty, and after being released for quite a while they found out not a single hair that was found matched Tribble’s DNA. in fact, one of the hairs actually came from a dog. This case indicated that the testing back then didn’t analysis correctly.
Two months before his release from the work camp, Dahmer gained parole and moved to 924 North 25th Street. One week after he moved into his new apartment, he murdered Raymond Smith, a male protistute. Smith was promised fifty dollars for sex. Smith was given a drink that had seven sleeping pills and he was then strangled by Dahmer. The next day Dahmer bought a camera and posed Smith in suggestive poses before he dismembered Smith in the bathroom.
There was multiply evidence that, traced back to O.J. Simpson. His blood was recovered and fingerprints were local on the back fence. Later they found his hair in a knit hat at the crime scene, which the same kind of fiber was found on Goldman’s clothing. Fibers from simpson’s car were also similar to the knit hat. In his vehicle, he had blood from both victims and a pair of bloody socks in his house, along with the right glove that was missing from the crime scene.
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.
Crime scene Overview: For the sake of this paper, I will use the wall closest to the victims head as a north facing wall. The crime scene appears to be a bedroom with two possible entry points on the east and south side of the bedroom. As the investigator, I would cordon off the bedroom at the entry points so I could process the scene with minimal distractions and interruptions. Once I have taken control of the crime scene, I would start to evaluate the scene as I work my way to the victim.
The job of a homicide detective is to investigate cases dealing with murder. A homicide detective evaluates and manages the crime scene, documents the scene, processes the scene, analyzes the area, and suspects. Homicide detectives may need to talk to loved ones, examine and investigate horrid scenes, or work in horrible conditions. The responsibilities of a homicide detective are to gather any evidence at a homicide scene, interview all witnesses, insure everything is done within the scope of the law, work closely with the prosecuting attorney, and to solve the homicide to bring closure to the victim’s family. If a detective doesn’t do their job correctly, there could be false evidence and an innocent person may go to jail for a crime they didn’t commit.
Are you someone who finds the dark workings of the human psyche and, indeed, the soul, fascinating? Unsolved crimes are possibly the coldest cases in history because of the ceaseless feeling of fear in knowing that there is a psychopath unconfined out there, victims families, by no means, get the justice they deserve and there is no justice served for the lives in danger and they are the most exhausting cases for investigators to deal with. Unsolved crimes are also known as cold cases. Cold cases are crimes or suspected crimes that have not yet been fully resolved. 90% of cold cases are induced by psychopaths.