Law enforcement uses several methods to solve all types of crimes. Having a variety of ways to help solve an investigation gives officials an advantage. If one method fails or isn’t helpful, there are several others they can rely on. For instance, if there are no physical witnesses to a crime, the criminal may have left a fingerprint at the crime scene. An individual’s fingerprint is unique, “no two persons have exactly the same arrangement of ridge patterns” (“Fingerprint ID”). Fingerprints of criminals and of civilians are collected and stored. Also, “People who apply for government jobs, jobs that handle confidential information, banking jobs, teaching jobs, law enforcement jobs, and any job that involves security issues can be fingerprinted” (“The First ID”). Fingerprints are processed within hours and minutes through the Integrated Automated Fingerprint ID System. This system was developed in 1991, and made it easier for different law enforcement agencies to store and share fingerprints.
Forensic Scientists can extract semen from a rape victim and use it to help identify the criminal. The semen extracted contains traces of DNA. Deoxyribonucleic acid, also known as DNA, is “the hereditary material in humans and almost all other organisms” (“What is DNA?”). Similar to fingerprints, no two persons have identical DNA with the exception of identical twins. The FBI began using DNA testing in criminal investigations in 1998 (Hays). In 1994, Congress authorized the Combined DNA Index System, also known as CODIS (Hays). This is a system of DNA records from national, state, and local crime labs (Hays). It contains more than four million DNA samples from convicted offenders, and more than 160,000 samples from crime scene evidence (Hays)...
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... National Human Genome Research Institute (NHGRI) - Homepage. N.p., n.d. Web. 18 Dec. 2013.
Nobles, James. "US Debates Security vs. Privacy 12 Years after 9/11." Usatoday. The Des Moines Register, 11 Sept. 2013. Web. 1 Nov. 2013.
Prime, Raymond J., and Jonathan Newman. "The Impact of DNA on Policing: Past, Present, and Future." Police Chief Oct.-Nov. 2007: 1-5. Print.
Reaves, Jessica. "Amber Alert: Does It Work?" TIME. N.p., 13 Mar. 2003. Web. 28 Nov. 2013.
Ross, Brian. "While America Slept: The True Story of 9/11." Abcnews. N.p., n.d. Web. 19 Dec. 2013.
Smith, Patricia. "Watching You." The New York Times Upfront 2 Sept. 2013: 6-7. Print.
Sullivan, Sean. "NSA Head: Surveillance Helped Thwart More than 50 Terror Plots." Washington Post. N.p., 18 June 2013. Web. 11 Nov. 2013.
"Surveillance Under the USA Patriot Act." (n.d.): n. pag. 10 Dec. 2010. Web. 1 Nov. 2013.
To better understand the topic at hand it is important to understand what electronic surveillance is pertaining to Foreign Intelligence. The definition of “electronic surveillance”, as written is FISA, can be summarized best as acquisition of data from wire or radio communications using “an electronic, mechanical, or other surveillance device”. There are four specific criteria that further define electronic surveillance in more detail also included in FISA under Title 1, Section 101. This section also included definitions for those groups that surveillance may be authorized against. [2]
. DNA can be left or collected from the hair, saliva, blood, mucus, semen, urine, fecal matter, and even the bones. DNA analysis has been the most recent technique employed by the forensic science community to identify a suspect or victim since the use of fingerprinting. Moreover, since the introduction of this new technique, there has been a large number of individuals released or convicted of crimes based on DNA left at the crime scene. DNA is the abbreviation for deoxyribonucleic acid.
Nowadays, DNA is a crucial component of a crime scene investigation, used to both to identify perpetrators from crime scenes and to determine a suspect’s guilt or innocence (Butler, 2005). The method of constructing a distinctive “fingerprint” from an individual’s DNA was first described by Alec Jeffreys in 1985. He discovered regions of repetitions of nucleotides inherent in DNA strands that differed from person to person (now known as variable number of tandem repeats, or VNTRs), and developed a technique to adjust the length variation into a definitive identity marker (Butler, 2005). Since then, DNA fingerprinting has been refined to be an indispensible source of evidence, expanded into multiple methods befitting different types of DNA samples. One of the more controversial practices of DNA forensics is familial DNA searching, which takes partial, rather than exact, matches between crime scene DNA and DNA stored in a public database as possible leads for further examination and information about the suspect. Using familial DNA searching for investigative purposes is a reliable and advantageous method to convict criminals.
Crime is a common public issue for people living in the inner city, but is not limited to only urban or highly populated cities as it can undoubtedly happen in small community and rural areas as well. In The Real CSI, the documentary exemplified many way in which experts used forensic science as evidence in trial cases to argue and to prove whether a person is innocent or guilty. In this paper, I explained the difference in fingerprinting technology depicted between television shows and in reality, how DNA technology change the way forensics evidence is used in the court proceedings, and how forensic evidence can be misused in the United States adversarial legal system.
Richards, Neil M. "The Dangers Of Surveillance." Harvard Law Review 126.7 (2013): 1934-1965. Academic Search Elite. Web. 8 Feb. 2014.
"Domestic Surveillance." Issues & Controversies. Facts On File News Services, 18 Nov. 2010. Web. 20 Nov. 2013. .
Introduction: As of December 23, 2015 there have been 794 children saved and returned due to the Amber Alert System. The system has been very effective and has saved many lives. Today I will be talking about how Amber Alerts work, where they came from, and how effective this system has been. I am credible because I have spent many hours researching this topic.
Once a crime has been committed the most important item to recover is any type of evidence left at the scene. If the suspect left any Deoxyribonucleic acid (DNA) at the crime scene, he could then be linked to the crime and eventually charged. A suspect’s DNA can be recovered if the suspect leaves a sample of his or her DNA at the crime scene. However, this method was not always used to track down a suspect. Not too long ago, detectives used to use bite marks, blood stain detection, blood grouping as the primary tool to identify a suspect. DNA can be left or collected from the hair, saliva, blood, mucus, semen, urine, fecal matter, and even the bones. DNA analysis has been the most recent technique employed by the forensic science community to identify a suspect or victim since the use of fingerprinting. Moreover, since the introduction of this new technique it has been a la...
The three different main types of fingerprints are Loops, Arches, and Whorls (Jackson 1). Henry Faulds is known as the Father of Fingerprints and developing fingerprints (Jackson 1). His discovery of fingerprints has made a huge impact not only in his time but, in Modern Crime Scene Investigation (Jackson 1). Without fingerprinting, it would be very difficult to convict criminals of crimes and very hard to try to process information. Crime Scene Investigators make a huge impact in Forensic Science. We need CSI workers, without them people could only imagine what crime would be like not only in our community, but in our
The COmbined DNA Index System (CODIS) is a computer software program that is operated and maintained by the Federal Bureau of Investigations, which allows law enforcement agencies to search and exchange DNA information. It was originally created in 1990 as a pilot software project that would allow 14 State and Local laboratories to communicate and share biological evidence data to aid in criminal case closure. Following the DNA Identification Act of 1994, the FBI established the National DNA Index System (NDIS) that currently serves over 25 countries in their own DNA Data banking initiatives (Federal Bureau of Investigations, 2010). NDIS, populated by many State DNA Index Systems (SDIS) and local DNA Index Systems (LDIS) provide a mechanism for cross checking previously disparate legal and judicial entities for serial criminal offenders (USA.gov, 2010).
Deoxyribonucleic acid (DNA) is an acclaimed extraordinary discovery that has contributed great benefits in several fields throughout the world. DNA evidence is accounted for in the majority of cases presented in the criminal justice system. It is known as our very own unique genetic fingerprint; “a chromosome molecule which carries genetic coding unique to each person with the only exception of identical twins (that is why it is also called 'DNA fingerprinting ')” (Duhaime, n.d.). DNA is found in the nuclei of cells of nearly all living things.
Before the 1980s, courts relied on testimony and eyewitness accounts as a main source of evidence. Notoriously unreliable, these techniques have since faded away to the stunning reliability of DNA forensics. In 1984, British geneticist Alec Jeffreys of the University of Leicester discovered an interesting new marker in the human genome. Most DNA information is the same in every human, but the junk code between genes is unique to every person. Junk DNA used for investigative purposes can be found in blood, saliva, perspiration, sexual fluid, skin tissue, bone marrow, dental pulp, and hair follicles (Butler, 2011). By analyzing this junk code, Jeffreys found certain sequences of 10 to 100 base pairs repeated multiple times. These tandem repeats are also the same for all people, but the number of repetitions is highly variable. Before this discovery, a drop of blood at a crime scene could only reveal a person’s blood type, plus a few proteins unique to certain people. Now DNA forensics can expose a person’s gender, race, susceptibility to diseases, and even propensity for high aggression or drug abuse (Butler, 2011). More importantly, the certainty of DNA evidence is extremely powerful in court. Astounded at this technology’s almost perfect accuracy, the FBI changed the name of its Serology Unit to the DNA Analysis Unit in 1988 when they began accepting requests for DNA comparisons (Using DNA to Solve Crimes, 2014).
Domestic Surveillance Citizens feeling protected in their own nation is a crucial factor for the development and advancement of that nation. The United States’ government has been able to provide this service for a small tax and for the most part it is money well spent. Due to events leading up to the terrifying attacks on September 11, 2001 and following these attacks, the Unites States’ government has begun enacting certain laws and regulations that ensure the safety of its citizens. From the Foreign Intelligence Surveillance Act (FISA) of 1978 to the most recent National Security Agency scandal, the government has attempted and for the most part succeeded in keeping domestic safety under control. Making sure that the balance between obtaining enough intelligence to protect the safety of the nation and the preservation of basic human rights is not extremely skewed, Congress has set forth requisites in FISA which aim to balance the conflicting goals of privacy and security; but the timeline preceding this act has been anything but honorable for the United States government.
Singer, Julie A. "The Impact Of Dna And Other Technology On The Criminal Justice System: Improvements And Complications."Albany Law Journal Of Science & Technology 17.(2007): 87. LexisNexis Academic: Law Reviews. Web. 10 Mar. 2014.
Crime investigators have the job to solve crime and find the suspect responsible. Sometimes the offense is very difficult to solve, but with the right pieces of evidence and tools, the investigation can be answered a little more easily. The use of fingerprints is a main tool used at crime scenes. Investigators find these at the actual crime scene and analyze them at the lab to determine whom the prints belong to. Each person has an individual print which is why this is a very useful piece of evidence. Sir Francis Galton found that the prints could be categorized into different types as well as different groups. The research of fingerprints from decades before has shaped the way detectives identify suspects and victims.