32 Questions
Which forensic discipline is responsible for the identification of substances?
Centre of Forensic Science Biology
Which forensic discipline is not mentioned in the provided text?
Dermatology
What service does the Centre of Forensic Science provide at no cost?
Identification of substances
Which of the following is not a service provided by the Centre of Forensic Science?
Analysis of drugs
Which forensic discipline uses microscopy and microspectrophotometry?
Identification of substances
Which forensic discipline is responsible for the comparison of differences and similarities between known and questioned samples?
Firearm and Tool mark examination
What method is used to detect latent fingerprints?
Iodine Fuming
How many characteristics does the average fingerprint have?
150 characteristics
Which of the following is NOT a component of DNA?
Keratin
What type of impression evidence may yield class characteristics like size and pattern?
Tires
Which of the following can be used to preserve lifted fingerprints?
Contrasting coloured backing
What is the molecule that makes up the 23 pairs of chromosomes in most human cells?
$DNA$
What must be done to avoid cross-contamination when comparing questioned and comparison samples?
Package questioned and comparison samples separately.
What type of characteristics result from normal usage or damage over time, and can be used to distinguish similar objects?
Accidental Characteristics
Why is it necessary for forensic scientists to perform their testing with absolute objectivity?
To ensure unbiased results.
What is the most definitive finding when it comes to determining a common origin between two samples?
Conclusive inclusionary or exclusionary finding
In the context of forensic science, what does 'Probable Origin' indicate about two samples?
They are consistent with being from the same source.
What principle explains the primary transfer of evidence through direct contact?
Locard's Exchange Principle
When two witnesses disagree in a trial, who must assess their reliability?
The trier of fact.
'Reliance on Forensic opinion' section emphasizes the need for investigators to act upon:
'Conclusive inclusionary or exclusionary' forensic opinions.
'Disclosure of Physical Evidence' section highlights that evidence incriminating or exculpating the accused must be disclosed to:
'The defense'.
'Labeling of Evidence' section stresses the importance of:
Marking exhibits clearly and distinctively.
What is the purpose of 'Druggist's Fold'?
To collect minute quantities of dry material
What is the significance of the two layers of skin in fingerprint formation?
Epidermis assists in forming ridges, while dermis contains sweat glands that form fingerprints
What is the primary characteristic of a 'Loop Pattern' in fingerprints?
Ridges that enter, curve, and exit from the same direction
Which action can change a person's fingerprints and make them more unique?
Deep tissue scarring
What is the most common type of fingerprint pattern?
Loop Pattern
Which action can render a fingerprint visible for identification?
Being covered with dirt or grease
Who developed the world's first fingerprint classification system and bureau?
Juan Vucetich
What is the primary use of fingerprints in criminal investigations?
Confirming identity and proving previous convictions
What is the main limitation on the use of fingerprints in investigations?
The need for a record of comparison prints for suspects
What action must be taken when dealing with wet exhibits to prevent mold growth?
Air-dry the exhibits
Test your knowledge on common forensic disciplines including psychology, anthropology, toxicology, biology, and more. Identify specialized fields in forensic science and enhance your understanding of different areas of expertise within the field.
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