The Controversy Of Polygraph Analysis

In the data-collection phase, the examiner will complete polygraph charts, the charts and questions will vary depending on different cases. The examiner then analyzes the collected data in the data analysis phase. The examinee then has the opportunity to explain or rationalize answers to different questions asked during the exam. Although some may criticize the polygraph tests, advances in technology, and science improves the polygraph exams. Multiple factors play a key role in the accuracy of a polygraph, including the experience of the examiner, the obediance of the examinee, and the way the exam is constructed. It is important to consider body language when interviewing examinees as well. This includes things that examinees may be saying, how they say it, and when they say it. One’s body does things that it cannot control, both inside and out, which plays an essential role in exams. When a polygraph test is administered perfectly, and appropriately the accuracy rate is above ninety percent. On the other hand, false positives on the polygraph exams may happen. A good examiner will try to identify, and get away from false positives. When Ruby has a false

of the lie detector in criminal investigation. John Larson, a “college cop”, student of Vollmer, who built the first lie detector in the Berkeley department, later said that he felt the technique had

There are many instances in which the polygraph is proven to be at fault such as with Cleve Backster. He was a polygraph examiner and believed strongly in the polygraph and its results. Backster one day decided to attach a houseplant that was in his office to the machine. He then would light the plants leaf on fire to see if the polygraph would have a spike in action. To his surprise as he struck the match the polygraph jumped signifying a response (Eells). Instead of considering that the polygraph went off randomly Backster instead assumed the plant had feelings and could even read his mind. This discovery lead to many scientific research projects in which scientists were unable to replicate Backster’s results. Rather than dismiss the event and polygraph as unreliable Backster dedicated the rest of his life to proving his discovery. The polygraph has been drilled into the minds of people as credible that taking it out of the justice system

Module 1 Assignment Introduction When determining whether or not an individual is being deceptive or truthful they demonstrate verbal and nonverbal markers. Pamela Meyer's Ted Talks “How to Spot a Liar” (2011) specifically explains these tactics. In our lecture presented by Murray Bartley (2015), he shows our class a video named “The Reid Interview Technique” to practice distinguishing between deception and truth. There were two cases presented in the video, the first being Mary Stanton. Mary Stanton is being accused of fondling the boy she babysits Brad Johnson, son of Marlene Johnson.

(Comer, 2014) In the article entitled “In the Dark, Inclusive: The truth about lie detector tests”, the author talks about how lie detector results have been incredibly false; “..Gary Ridgway, known as the Green River Killer and the Russian mole Aldrich Ames, who used so-called "countermeasures" to beat polygraphs twice in the 1980s and early 1990s... Conversely, innocent people have failed the polygraph, like Bill Wegerle, who was suspected of killing his wife in 1986 until DNA evidence traced the murder to BTK killer Dennis Rader”(Baran and Vogel, In the Dark, Inclusive: The truth about lie detector tests, apmreports.org). Whoever is administering the test must also know exactly what they are doing so that no errors are made. (Comer, 2014) I have also wondered personally before if someone who takes the test is known to have struggled with anxiety previously would get a bad reading from the machine, even if they are telling the truth.

Some situations left no other choice but to lie and use tricks in order to leave without consequences of your wrong actions. That what Mrs. Leslie and Mrs. Christine have done to their lawyers, in order to get defended, each of them made her tricks differently. While Leslie did nice efforts to delude her attorney that he’s the hero who can save her life and keep her husband happy, Christine in contrast, misled her husband’s attorney successfully during the prosecution the way left no doubt she was against her husband, besides the fake letter trick that left her husband in a good stand during the jury. Leslie, as mentioned used her emotions as a weapon to manipulate her attorney’s mind. In the following text, Leslie was pretending that she

Also, due to the Brain scans being “70 to 90 per cent” accurate, this producing a defence for a defendant to argue that the scan in inaccurate, causing the process of scans to be a waste of time. As previously seen In R v Béland the Supreme Court of Canada ruled that the results of a polygraph examination are not admissible as evidence. As the test had relied upon ones sweat and heart palpitations which delivered inaccurate results. This has also been seen to be the reason why polygraph examinations were excluded as evidence in the English Criminal justice system. Therefore

Keywords: Deception, defense, decoys, lying, disinformation. In spite of the fact that police have for quite some time been precluded from utilizing physical power, they can utilize an assortment of intense mental ploys to concentrate admissions from criminal associates, incorporating the utilization with trickiness amid

Wrongful convictions are common in the court-system. In fact, wrongful convictions are not the rare events that you see or hear on televisions shows, but are very common. They stem from some sort of systematic defect that lead to wrongful convictions such as, eyewitness misidentification testimony, unvalidated or improper forensic science, false confessions and incriminating statements, DNA lab errors, false confessions, and informants (2014). Bringing awareness to all these systematic defects, which result in wrongful, is important because it will better adjust the system to avoid making the same mistakes with future cases. However, false confession is not a systematic defect. It does not occur because files were misplaced or a lab technician put one too many drops. False confessions occur because of some of psychological attempt to protect oneself and their family. Thus, the courts responsibility should be to reduce these false confessions.

Eyewitnesses are critical to the criminal justice system, but there have been issues involving eyewitness testimonies, which occasionally cause them to be seen as unreliable. According to innocenceproject.org, 72% of DNA exoneration cases in the United States have resulted from eyewitness misidentification. This is concerning because in a study by Benton, Ross, Bradshaw, Thomas, and Bradshaw (2005), they examined jurors, judges and law enforcement’s knowledge about eyewitness issues. They found that those involved in the legal system are still very unaware of eyewitness memory research, and the reasons behind why eyewitnesses may or may not be considered reliable. There needs to be a way to increase reliability so that eyewitnesses are able to accurately recognize perpetrators and other important information to put the guilty people away, and to keep the innocent people free.

Since there is very little research on this topic and it is one that is very controversial and lack support for or against it is a topic that is difficult to research. The hopes of this study is to examine whether or not the use of polygraph testing, when utilized as part of offender-specific evaluation and treatment, resulted in disclosures of new victims among juveniles in an outpatient treatment program. As a therapist in this field and working closely with juveniles in this area I expected participants to disclose a significant higher victim count before and during the polygraph testing than before testing. I hypotheses that this study will reveal more sexual offenses against male victims and family members. The residential treatment facility, Sequel will be the focus of this study, they use the sexual history polygraphs to assure the greatest treatment benefit.

Would you ever admit to committing a crime that you didn’t actually commit? Of course not, says common sense. Naturally, it is difficult to understand why anyone would confess to a crime they didn’t commit. However, false confessions are one the leading causes of wrongful convictions.1 As the Supreme Court of Canada noted in R v. Oickle, innocent people are induced to make false confessions more frequently than those unacquainted with the phenomenon might expect.2

This leads to wrongful convictions in about 25 percent of cases. Mentally capable adults also give false confessions due to a variety of factors like the length of interrogation, exhaustion or a belief that they can be released after confessing and attempt to prove their innocence later. Even though these factors lead to false confessions, they are not the only ones. Sometimes law enforcement use harsh interrogation tactics with uncooperative suspects. But some police officers, convinced of a suspect’s guilt, occasionally use tactics so persuasive that an innocent person feels compelled to

The polygraph test is one of the most controversial criminal investigative techniques of all-time. From the initial years of the invention to today, there is not a consensus about the investigative tool. That is why there are many people for and against the administration of polygraph tests. Therefore, in order to develop a clear picture of the polygraph test the history of the test must be established. Although, there are many sources that have well documented concerns about the invention, the polygraph test is still around after almost 80 years.

However, although this suggests that human lie detection is fairly accurate, earlier research has found the opposite. According to Wallace (1999), psychological research on deception shows that most of us are poor judges of truthfulness. One may assume that this only applies to only ordinary people and not professionals. However further research shows that ‘this applies to professionals such as police and custom inspectors, whose jobs are supposed to include some expertise at lie detection’ (Wallace, 1999).