Crime Scene Investigation
This should be one of the first actions investigators take when arriving at a crime scene to prevent unauthorized people from entering.
What is secure the crime scene / establish a perimeter?
Blood, hair, saliva, tissue, and bone are examples of this general category of evidence.
What is biological evidence?
This standard asks whether a scientific method is generally accepted by the relevant scientific community.
What is the Frye Standard?
This genetic material can be used to help identify an unknown individual.
What is DNA?
This forensic specialist studies human bones to assist with identification.
Who is a forensic anthropologist?
Before investigators begin collecting evidence, they should use photographs, sketches, notes, and observations to do this.
What is document the crime scene?
This happens when unwanted materials or substances are introduced onto evidence.
What is contamination?
This court standard gives judges a larger role in deciding whether scientific expert evidence is reliable and relevant.
What is the Daubert Standard?
This unique pattern created from DNA can be compared with known samples.
What is a DNA profile?
This forensic specialty uses teeth and dental records to help identify individuals.
What is forensic odontology?
Investigators photograph evidence before moving it because they need to preserve this information.
What is the evidence's original location and condition?
This documented record identifies everyone who collected, handled, transported, or tested a piece of evidence.
What is the chain of custody?
James Frye attempted to introduce the results of this early lie-detection method.
What is the systolic blood-pressure deception test?
A toothbrush known to belong to a missing person could provide this type of sample for DNA comparison.
What is a reference sample?
An unknown victim has a healed wrist fracture. Which forensic specialist would be especially useful for examining the skeletal evidence?
Who is a forensic anthropologist?
Put these actions in the best order:
Collect evidence — Secure the scene — Photograph the scene — Document observations
What is Secure the scene → Photograph the scene → Document observations → Collect evidence?
Investigators properly package a bloodstained shirt but forget to record who transported it to the laboratory. Which forensic procedure has been weakened?
What is the chain of custody?
Testability, peer review, known or potential error rate, standards, and general acceptance are factors associated with this standard.
What is Daubert?
Heat, water, chemicals, bacteria, and environmental exposure can damage DNA. Scientists describe DNA in this condition using this term.
What is degraded DNA?
An unknown victim has a distinctive crown and missing upper molar that match a missing person's records. What evidence is being compared?
What are dental records?
An investigator enters a scene, immediately picks up a backpack, and searches it before photographing or documenting it. Identify the biggest problem.
What is the investigator altered the crime scene before documenting the evidence?
Explain why investigators should wear gloves and change them between handling different pieces of evidence.
What is to prevent contamination and cross-contamination between evidence samples?
A new blood-analysis technique has been tested repeatedly and peer reviewed, but it is not yet generally accepted by most scientists. Which standard may be more open to considering the evidence?
What is the Daubert Standard?
Investigators do not have a direct DNA sample from a missing person, so they compare DNA from unidentified remains with DNA voluntarily provided by the person's biological mother. What type of analysis is being performed?
Answer: What is kinship analysis?
Investigators use bones, dental records, DNA, and family reference samples to identify people following a large-scale disaster. This overall process is known by the abbreviation DVI.
What is Disaster Victim Identification?