Question

1. blood is classified as which type of evidence?

a) direct
b) physical
c) material
d) biological

1. wearing personal protective equipment (ppe) including surgical masks, gloves, and disposable shoe coverings is included in which s of crime scene investigation?

a) scan
b) secure
c) search
d) separate

1. which of the following do not determine the extent of transfer when two people or objects come into contact with each other?

a) intensity of contact
b) duration of contact
c) nature of materials in contact
d) location of contact

1. how often should gloves be changed when collecting and analyzing evidence?

a) every ten minutes
b) every third piece of evidence
c) only when you change types of evidence (i.e. from biological to physical)
d) after every collection/handling

1. which of the following options includes only examples of trace evidence?

a) hairs, fibers, confessions
b) eyewitness testimony, confession, glass fragments
c) blood, observations, fibers
d) fingerprints, footprints, soil

1. you only need to take pictures of fingerprints that are on non movable objects

a) true
b) false

1. in order to properly store a gun, there are only certain areas that should be handled. the following is an acceptable area to handle a gun?

a) chamber
b) barrel
c) checkered stocks
d) hammer

Explanation:

1. Blood contains biological material like DNA, so it is biological evidence.
2. Wearing PPE is part of securing the crime - scene to protect from contamination and ensure safety.
3. Location of contact does not directly determine the extent of transfer; intensity, duration and nature of materials do.
4. Gloves should be changed after every collection/handling to prevent cross - contamination.
5. Fingerprints, footprints, and soil are examples of trace evidence. Hairs and fibers are too, but confessions, eyewitness testimony are not. Blood is biological evidence and observations are not trace evidence.
6. Fingerprints on all objects, movable or non - movable, should be documented.
7. Checkered stocks are an acceptable area to handle a gun as they are designed for grip and less likely to affect forensic analysis.

Answer:

1. d) Biological
2. b) Secure
3. d) Location of contact
4. d) After every collection/handling
5. d) Fingerprints, footprints, soil
6. b) False
7. c) Checkered stocks