Admin Table of Contents
- 1 How does the use of suspect lineups support the process of recollection?
- 2 What are some of the issues related to eyewitness evidence?
- 3 Why is it important to check the certainty of the witness about their lineup identification immediately?
- 4 What is a lineup multi suspect identification?
- 5 What are the recommended procedures for conducting lineups?
- 6 What other ways other than lineups can be used by police to make the identification of a person as the perpetrator of a crime more reliable?
- 7 Why is evidence based testing important in policing?
- 8 Can evidence be manipulated at a crime scene?
- 9 What are the different types of physical evidence found at crime scenes?
How does the use of suspect lineups support the process of recollection?
Police lineups in California are used for a witness to identify a crime suspect among other similar looking people. If the eyewitness picks the suspect out of the lineup as matching the eyewitness’s recollection, then the suspect faces strong evidence for a conviction at the upcoming criminal jury trial.
Extreme witness stress at the crime scene or during the identification process. Presence of weapons at the crime (because they can intensify stress and distract witnesses). Use of a disguise by the perpetrator such as a mask or wig. A racial disparity between the witness and the suspect.
Why is it important to check the certainty of the witness about their lineup identification immediately?
Careful documentation of the lineup procedures, including a witness’ level of certainty that she has correctly identified the perpetrator, when taken immediately following the identification, helps the jury to assess the eyewitness evidence appropriately and minimizes the effects of reinforcing feedback that can …
What are the three most common types of identification procedures?
The three basic types of identification procedures are: Lineup, show-up, and photographic array.
What are three challenges surrounding the use of eyewitness testimony?
They are: The opportunity to view the perpetrator at the scene of the crime. The degree of attention the witness had on the suspect. The extent to which the witness’s description of the suspect is accurate.
What is a lineup multi suspect identification?
In multiple-suspect lineups, the probability of a possible mistaken identification rises as the number of suspects in a lineup increases. If more than one suspect must be presented in any one lineup, the fillers should be multiplied accordingly (e.g., two suspects indicate a minimum of eight fillers).
What are the recommended procedures for conducting lineups?
One way to perform a police lineup is to have the eyewitness identify a suspect during a live lineup. This process usually involves having the suspect and four or five other people line up against a wall. Another common way to conduct a police lineup is to present the eyewitness with a series of pictures.
What other ways other than lineups can be used by police to make the identification of a person as the perpetrator of a crime more reliable?
One or more crime suspects, along with a few other people who look vaguely like the suspect(s), are ushered into a room in the police station….Police Lineups, Other Identification Methods, and Legal Counsel
- Blood samples;
- DNA samples;
- Handwriting samples; and.
- Voice samples.
Why can testimonial evidence be unreliable?
Schemas are therefore capable of distorting unfamiliar or unconsciously ‘unacceptable’ information in order to ‘fit in’ with our existing knowledge or schemas. This can, therefore, result in unreliable eyewitness testimony.
What are 3 factors that can cause eyewitnesses to fail?
What factors can make eyewitness testimony unreliable?
- Limitations of memory. Human memory is often viewed as static, but in reality, memories of perceptual experiences are not necessarily fixed.
- Environmental factors.
- Questionable lineup procedures.
- Misrepresentation during trial.
- Questioning eyewitness testimony.
Why is evidence based testing important in policing?
Evidence-based targeting re- quires systematic ranking and comparison of levels of harm associated with various places, times, people, and situations that policing can lawfully ad- dress. Evidence-based testing helps assure that police neither increase crime nor waste money.
Can evidence be manipulated at a crime scene?
The possibility of evidence manipulation begins at the crime scene; here evidence can be purposefully or accidentally overlooked, planted, or mishandled (The Innocence Project, n.d).
What are the different types of physical evidence found at crime scenes?
Fingerprints are by far the most common type of physical evidence found in most crime scenes, though there are a number of other types of evidence that must be identified and collected from the crime scene as well, including biological and trace evidence, as well as evidence left by the use of firearms or other weapons and even by vehicles.
How many eyewitnesses are there in a criminal investigation?
While there are no exact numbers on how many involved eyewitness identification, one 1989 survey of prosecutors suggests that at least 80,000 eyewitnesses make identifications of criminal suspects each year. Investigators employ a variety of techniques and procedures when securing eyewitness identification evidence.