HOSA 2 Forensic Science
Comprehensive Questions
(Frequently Tested) with
Verified Answers Graded A+
chain of custody - Answer: the documented and unbroken transfer of evidence
circumstantial evidence - Answer: (indirect evidence) evidence used to imply a fact but not
prove it directly
class evidence - Answer: material that connects an individual or thing to a certain group
crime-scene investigation - Answer: a multidisciplinary approach in which scientific and legal
professionals work together to solve a crime
crime scene reconstruction - Answer: a hypothesis of the sequence of events from before the
crime was committed through its commission
datum point - Answer: a permanent, fixed point of reference used in mapping a crime scene
direct evidence - Answer: evidence that (if true) proves an alleged fact, such as an eyewitness
account of a crime
, individual evidence - Answer: a kind of evidence that identifies a particular person or thing
subdatum point - Answer: one of several preference points of known coordinates marked from
a measurable distance and direction from the datum point
trace evidence - Answer: small but measurable amounts of physical or biological material found
at a crime scene
Triangulation - Answer: a technique used to record evidence location from two fixed reference
points
Locard's Exchange Principle - Answer: states that when a criminal comes in contact with an
object or person, a cross-transfer of evidence occurs
Seven S's of Crime Scene Investigation - Answer: secure the scene , separate the witness, scan
the scene, see, sketch, search, secure evidence
Mapping the Outdoor Crime Scene - Answer: Check pg. 32
Analyzing Evidence - Answer: See pg. 34
Staged Crime Scene - Answer: See pg. 35
Summary, Case Studies, Careers, and Review - Answer: See pgs. 36-42
allele - Answer: An alternative form of a gene.
Comprehensive Questions
(Frequently Tested) with
Verified Answers Graded A+
chain of custody - Answer: the documented and unbroken transfer of evidence
circumstantial evidence - Answer: (indirect evidence) evidence used to imply a fact but not
prove it directly
class evidence - Answer: material that connects an individual or thing to a certain group
crime-scene investigation - Answer: a multidisciplinary approach in which scientific and legal
professionals work together to solve a crime
crime scene reconstruction - Answer: a hypothesis of the sequence of events from before the
crime was committed through its commission
datum point - Answer: a permanent, fixed point of reference used in mapping a crime scene
direct evidence - Answer: evidence that (if true) proves an alleged fact, such as an eyewitness
account of a crime
, individual evidence - Answer: a kind of evidence that identifies a particular person or thing
subdatum point - Answer: one of several preference points of known coordinates marked from
a measurable distance and direction from the datum point
trace evidence - Answer: small but measurable amounts of physical or biological material found
at a crime scene
Triangulation - Answer: a technique used to record evidence location from two fixed reference
points
Locard's Exchange Principle - Answer: states that when a criminal comes in contact with an
object or person, a cross-transfer of evidence occurs
Seven S's of Crime Scene Investigation - Answer: secure the scene , separate the witness, scan
the scene, see, sketch, search, secure evidence
Mapping the Outdoor Crime Scene - Answer: Check pg. 32
Analyzing Evidence - Answer: See pg. 34
Staged Crime Scene - Answer: See pg. 35
Summary, Case Studies, Careers, and Review - Answer: See pgs. 36-42
allele - Answer: An alternative form of a gene.
