Forensic Biology
Forensic Chemistry
Forensic History and Law
QA/QC
Crime Scene & Fingerprints
100
A forensic DNA profile shows two different alleles at a specific STR locus. This term describes the individual's genotype at that locus.
What is heterozygous?
100
This presumptive color test is commonly used to indicate the possible presence of cocaine. A positive result produces a blue color change.
What is the Scott test?
100
This legal process is used to question potential jurors or expert witnesses about their qualifications, biases, or suitability.
What is voir dire?
100
This term refers to the planned and systematic activities used to ensure a laboratory's results are reliable and meet established requirements.
What is quality assurance?
100
This principle states that whenever two objects come into contact, material is transferred between them.
What is Locard's Exchange Principle?
200
These are the four main steps used to generate a forensic DNA profile from a biological evidence sample.
What are extraction, quantification, amplification, and separation/detection?
200
A forensic chemist uses this technique to separate the components of two questioned ink samples to determine whether they have similar chemical profiles.
What is thin-layer chromatography (TLC)?
200
This French scientist established the world's first police crime laboratory in Lyon in 1910.
Who is Edmond Locard?
200
This type of sample is included in an analytical batch to detect contamination or problems introduced during the testing process.
What is a negative control?
200
This is a fingerprint pattern.
What is a whorl?
300
The RSID-Blood test is designed to identify human blood, but blood from these two types of animals can also produce a positive result.
What are ferrets and higher primates?
300
This class of drugs includes heroine, morphine, and codeine.
What are opiates?
300
This was the first U.S. city to establish a police crime laboratory.
What is Los Angeles?
300
These documents provide standardized, step-by-step instructions for performing laboratory procedures.
What are standard operating procedures?
300
This type of minutiae is used for fingerprint analysis.
What is a ridge bifurcation?
400
This enzyme, found in high concentrations in saliva, is detected by the Phadebas test and is commonly used as in indicator of a suspected saliva stain.
What is α-amylase?
400
This sampling technique is used to extract volatile ignitable-liquid residues from fire debris.
What is headspace analysis?
400
Before DNA profiling became standard, this system was widely used in forensic identification to determine whether biological evidence could be associated with an individual.
What is ABO blood typing OR RFLP?
400
This occurs when a laboratory compares its results to those of an outside provider or other laboratories to evaluate its performance.
What is proficiency testing?
400
These are the three sequential types of photographs taken during crime scene documentation.
What are overall, evidence-establishing, and close-up photographs?
500
The FBI DNA database is divided into these three major indices that allow investigators to compare DNA profiles from different sources.
What are the Forensic, Convicted Offender/Arrestee, and Missing Persons indices?
500
This inactive metabolite of THC is commonly targeted in urine drug testing.
What is THC-COOH?
500
Under this standard, scientific evidence is generally admissible only when the underlying method has gained acceptance within the relevant scientific community.
What is the Frye standard?
500
This international standard specifies requirements for the competence, impartiality, and consistent operation of testing laboratories.
What is ISO/IEC 17025?
500
This type of packaging is used for fire debris collected for ignitable-liquid analysis.
What is an airtight metal can?