Criminal Justice Nocti Certification
Study Questions With Answers
How should liquid blood stains be collected and stored? - CORRECT
| | | | | | | | | | |
ANSWER✔✔-Blood that is in liquid pools should be picked up on a | | | | | | | | | | | |
gauze pad or other clean sterile cotton cloth and allowed to air dry
| | | | | | | | | | | | |
thoroughly, at room temperature. It should be refrigerated or frozen as
| | | | | | | | | | |
soon as possible and brought to the Laboratory as quickly as possible.
| | | | | | | | | | | |
Delays beyond 48 hours may make the samples useless.
| | | | | | | |
How should dried blood stains be collected and stored? - CORRECT
| | | | | | | | | | |
ANSWER✔✔-• On clothing, if possible, wrap the item in clean paper, | | | | | | | | | | |
place the article in a brown paper bag or box and seal and label
| | | | | | | | | | | | | |
container. Do not attempt to remove stains from the cloth.
| | | | | | | | | |
• On small solid objects, send the whole stained object to the
| | | | | | | | | | | |
Laboratory, after labeling and packaging. | | | |
• On large solid objects, cover the stained area with clean paper and
| | | | | | | | | | | | |
seal the edges down with tape to prevent loss or contamination. If
| | | | | | | | | | | |
impractical to deliver the whole object to the Laboratory, scrape the
| | | | | | | | | | |
stain onto a clean piece of paper, which can be folded and placed in an
| | | | | | | | | | | | | | |
envelope. Do not scrape directly into evidence envelope. Scrape blood
| | | | | | | | | |
from objects using a freshly washed and dried knife or similar tool.
| | | | | | | | | | | |
Wash and dry the tool before each stain is scraped off. Seal and mark
| | | | | | | | | | | | | |
the envelope.
|
,• Do not mix dried stains. Place each stain in a separate envelope.
| | | | | | | | | | | |
• Never attempt to wipe dried stains from an object using a moistened
| | | | | | | | | | | | |
cloth or paper. | |
How are autopsy blood samples collected? - CORRECT ANSWER✔✔-
| | | | | | | |
Request that pathologist obtain the sample directly from the heart into
| | | | | | | | | | |
a yellow (ACD) or purple stoppered vacutainer (some labs request both).
| | | | | | | | | |
In rare cases when no liquid blood is available, ask pathologist to collect
| | | | | | | | | | | | |
a section of liver, bone, and/or deep muscle tissue and freeze for typing.
| | | | | | | | | | | | |
In such cases, proceed also with collection of a secondary standard as
| | | | | | | | | | | | |
described below. |
How do you collect blood samples from a live victim? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-For typing purposes, have sample drawn into yellow and | | | | | | | | |
purple stoppered vacutainers. Note these are distinguished from the BA
| | | | | | | | | |
tubes which have grey stoppers.
| | | |
If the victim is injured to the extent that a transfusion is necessary, make
| | | | | | | | | | | | |
|an effort to obtain or begin necessary procedures to obtain the pre-
| | | | | | | | | | |
transfusion sample collected by the hospital. These samples are not
| | | | | | | | | |
retained for long periods by the hospital, so it is important to act
| | | | | | | | | | | | |
promptly. Also, make sure that some bloodstained garment worn by the
| | | | | | | | | | |
individual has been air dried and frozen to serve as a secondary
| | | | | | | | | | | |
standard.
What is the steps in handling and storage of physiological fluid
| | | | | | | | | | |
evidence? - CORRECT ANSWER✔✔-Stains and Controls | | | | |
,1. Air dry
| | |
2. Package in paper
| | | |
3. Freeze
| |
Consider special handling of non-absorbent items on (metal or plastic).
| | | | | | | | | |
Any condensation from thawing could disturb or destroy such evidence.
| | | | | | | | | |
Such items should be kept at room temperature and submitted to the
| | | | | | | | | | | |
lab as soon as possible.
| | | |
Basic rules of blood storage - CORRECT ANSWER✔✔-• Refrigerate, do
| | | | | | | | | |
not freeze standards collected in yellow stoppered vacutainers.
| | | | | | |
• Submit to the lab as soon as possible.
| | | | | | | |
What are the basic rules of saliva collection and storage? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-• Collect on a sterile gauze pad or swabs, allow to air dry | | | | | | | | | | | | |
and package in paper. Do not use plastic containers.
| | | | | | | |
Where are seminal stains usually found and what is the proper
| | | | | | | | | | |
packaging of them? - CORRECT ANSWER✔✔-• Seminal stains are often,
| | | | | | | | | |
but not always, found on clothing, blankets, sheets. Allow any stains to
| | | | | | | | | | | |
air dry, wrap in paper, and package evidence in paper bags. Do not use
| | | | | | | | | | | | | |
plastic bags. |
How do you handle evidence collection in a sex offense case. - CORRECT
| | | | | | | | | | | | |
ANSWER✔✔-the victim should always be examined by a physician. A | | | | | | | | | |
, Sexual Assault Evidence Collection Kit is used to collect evidence from
| | | | | | | | | | |
the victim. It is very important that the instructions on the kit be
| | | | | | | | | | | | |
followed with care in order to gain the greatest benefit from the
| | | | | | | | | | | |
collected evidence. |
• Label all garments such as undershorts, panties, or other exhibits and
| | | | | | | | | | | |
package each garment separately. | | |
• If damp, allow fabric to dry completely before packaging.
| | | | | | | | |
• Handle fabrics as little as possible.
| | | | | |
Hair collected at a crime scene is collected and packaged, how? -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-• An examination of human hair can
| | | | | | | |
occasionally reveal the possible race of the individual from whom it
| | | | | | | | | | |
came and the part of the body from which it originated.
| | | | | | | | | |
• Human hair can be compared to determine whether or not two
| | | | | | | | | | | |
samples could have had a common origin. The value of the Laboratory
| | | | | | | | | | | |
examinations of such specimens will depend upon the amount of hair | | | | | | | | | | |
recovered and the characteristics found in the examinations.
| | | | | | |
• Recover all hair present. If possible, use the fingers or tweezers to pick
| | | | | | | | | | | | |
|up hair, place in paper bindles or coin envelopes which should then be
| | | | | | | | | | | | |
folded and sealed in larger envelopes. Label the outer sealed envelope.
| | | | | | | | | |
• If hair is attached, such as in dry blood, or caught in metal or a crack of
| | | | | | | | | | | | | | | | |
|glass, do not attempt to remove it but rather leave hair intact on the
| | | | | | | | | | | | | |
object. If the object is small, mark it, wrap it, and seal it in an envelope.
| | | | | | | | | | | | | | | |
If the object is large, wrap the area containing the hair in paper to
| | | | | | | | | | | | | |
prevent loss of hairs during shipment.
| | | | |
Study Questions With Answers
How should liquid blood stains be collected and stored? - CORRECT
| | | | | | | | | | |
ANSWER✔✔-Blood that is in liquid pools should be picked up on a | | | | | | | | | | | |
gauze pad or other clean sterile cotton cloth and allowed to air dry
| | | | | | | | | | | | |
thoroughly, at room temperature. It should be refrigerated or frozen as
| | | | | | | | | | |
soon as possible and brought to the Laboratory as quickly as possible.
| | | | | | | | | | | |
Delays beyond 48 hours may make the samples useless.
| | | | | | | |
How should dried blood stains be collected and stored? - CORRECT
| | | | | | | | | | |
ANSWER✔✔-• On clothing, if possible, wrap the item in clean paper, | | | | | | | | | | |
place the article in a brown paper bag or box and seal and label
| | | | | | | | | | | | | |
container. Do not attempt to remove stains from the cloth.
| | | | | | | | | |
• On small solid objects, send the whole stained object to the
| | | | | | | | | | | |
Laboratory, after labeling and packaging. | | | |
• On large solid objects, cover the stained area with clean paper and
| | | | | | | | | | | | |
seal the edges down with tape to prevent loss or contamination. If
| | | | | | | | | | | |
impractical to deliver the whole object to the Laboratory, scrape the
| | | | | | | | | | |
stain onto a clean piece of paper, which can be folded and placed in an
| | | | | | | | | | | | | | |
envelope. Do not scrape directly into evidence envelope. Scrape blood
| | | | | | | | | |
from objects using a freshly washed and dried knife or similar tool.
| | | | | | | | | | | |
Wash and dry the tool before each stain is scraped off. Seal and mark
| | | | | | | | | | | | | |
the envelope.
|
,• Do not mix dried stains. Place each stain in a separate envelope.
| | | | | | | | | | | |
• Never attempt to wipe dried stains from an object using a moistened
| | | | | | | | | | | | |
cloth or paper. | |
How are autopsy blood samples collected? - CORRECT ANSWER✔✔-
| | | | | | | |
Request that pathologist obtain the sample directly from the heart into
| | | | | | | | | | |
a yellow (ACD) or purple stoppered vacutainer (some labs request both).
| | | | | | | | | |
In rare cases when no liquid blood is available, ask pathologist to collect
| | | | | | | | | | | | |
a section of liver, bone, and/or deep muscle tissue and freeze for typing.
| | | | | | | | | | | | |
In such cases, proceed also with collection of a secondary standard as
| | | | | | | | | | | | |
described below. |
How do you collect blood samples from a live victim? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-For typing purposes, have sample drawn into yellow and | | | | | | | | |
purple stoppered vacutainers. Note these are distinguished from the BA
| | | | | | | | | |
tubes which have grey stoppers.
| | | |
If the victim is injured to the extent that a transfusion is necessary, make
| | | | | | | | | | | | |
|an effort to obtain or begin necessary procedures to obtain the pre-
| | | | | | | | | | |
transfusion sample collected by the hospital. These samples are not
| | | | | | | | | |
retained for long periods by the hospital, so it is important to act
| | | | | | | | | | | | |
promptly. Also, make sure that some bloodstained garment worn by the
| | | | | | | | | | |
individual has been air dried and frozen to serve as a secondary
| | | | | | | | | | | |
standard.
What is the steps in handling and storage of physiological fluid
| | | | | | | | | | |
evidence? - CORRECT ANSWER✔✔-Stains and Controls | | | | |
,1. Air dry
| | |
2. Package in paper
| | | |
3. Freeze
| |
Consider special handling of non-absorbent items on (metal or plastic).
| | | | | | | | | |
Any condensation from thawing could disturb or destroy such evidence.
| | | | | | | | | |
Such items should be kept at room temperature and submitted to the
| | | | | | | | | | | |
lab as soon as possible.
| | | |
Basic rules of blood storage - CORRECT ANSWER✔✔-• Refrigerate, do
| | | | | | | | | |
not freeze standards collected in yellow stoppered vacutainers.
| | | | | | |
• Submit to the lab as soon as possible.
| | | | | | | |
What are the basic rules of saliva collection and storage? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-• Collect on a sterile gauze pad or swabs, allow to air dry | | | | | | | | | | | | |
and package in paper. Do not use plastic containers.
| | | | | | | |
Where are seminal stains usually found and what is the proper
| | | | | | | | | | |
packaging of them? - CORRECT ANSWER✔✔-• Seminal stains are often,
| | | | | | | | | |
but not always, found on clothing, blankets, sheets. Allow any stains to
| | | | | | | | | | | |
air dry, wrap in paper, and package evidence in paper bags. Do not use
| | | | | | | | | | | | | |
plastic bags. |
How do you handle evidence collection in a sex offense case. - CORRECT
| | | | | | | | | | | | |
ANSWER✔✔-the victim should always be examined by a physician. A | | | | | | | | | |
, Sexual Assault Evidence Collection Kit is used to collect evidence from
| | | | | | | | | | |
the victim. It is very important that the instructions on the kit be
| | | | | | | | | | | | |
followed with care in order to gain the greatest benefit from the
| | | | | | | | | | | |
collected evidence. |
• Label all garments such as undershorts, panties, or other exhibits and
| | | | | | | | | | | |
package each garment separately. | | |
• If damp, allow fabric to dry completely before packaging.
| | | | | | | | |
• Handle fabrics as little as possible.
| | | | | |
Hair collected at a crime scene is collected and packaged, how? -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-• An examination of human hair can
| | | | | | | |
occasionally reveal the possible race of the individual from whom it
| | | | | | | | | | |
came and the part of the body from which it originated.
| | | | | | | | | |
• Human hair can be compared to determine whether or not two
| | | | | | | | | | | |
samples could have had a common origin. The value of the Laboratory
| | | | | | | | | | | |
examinations of such specimens will depend upon the amount of hair | | | | | | | | | | |
recovered and the characteristics found in the examinations.
| | | | | | |
• Recover all hair present. If possible, use the fingers or tweezers to pick
| | | | | | | | | | | | |
|up hair, place in paper bindles or coin envelopes which should then be
| | | | | | | | | | | | |
folded and sealed in larger envelopes. Label the outer sealed envelope.
| | | | | | | | | |
• If hair is attached, such as in dry blood, or caught in metal or a crack of
| | | | | | | | | | | | | | | | |
|glass, do not attempt to remove it but rather leave hair intact on the
| | | | | | | | | | | | | |
object. If the object is small, mark it, wrap it, and seal it in an envelope.
| | | | | | | | | | | | | | | |
If the object is large, wrap the area containing the hair in paper to
| | | | | | | | | | | | | |
prevent loss of hairs during shipment.
| | | | |
