Term
| What are 6 main methods of collection of hair? |
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Definition
1. collection of visually observed hairs.
2. vacuming method, used for large crime scenes investigators.
3. brushing, scraping, or shaking of garment or cloth.
4. combing and clipping method.
5. place in bag method.
6. clear tape method. |
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Term
| Why should tweezers not be used in the collection of hair? |
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Definition
| Because they can cause damage to the structure of the hair. |
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Term
| What are 4 classifications of medullae? |
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Definition
| absent, fragmented interrupted, or continuous. |
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Term
| How do investigators observe scale patterns of hair? |
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Definition
| They embed the hair into a liquid medium, often clear nail polish, and allow it to set. Once it is dried, hair leaves a cast of the outter scale. |
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Term
| Name and explain 3 types of scale structure. |
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Definition
1. coronal: are symmetrical and overlapping one another, not found in humans.
2. petal: resemble a scale of a reptile, not found in humans.
3. umbricate: are overlapping and exhibit no pattern, found in humans. |
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Term
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Definition
1. Cuticle: clear outside covering of the hair shaft.
2. cortex: made up of keratin molecules aligned parallel to the length of the shaft.
3. medulla: row of cells running along the center of the cortex like a canal. |
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Term
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Definition
1. Anagen phase: when hairs are pulled out during this phase they may have follicular tissue attached.
2. Catagen phase: intermediate stage.
3. Telogen phase: when the follicule is ready to push out the mature hair. |
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Term
| measuring key bones, what four pieces of info. can be determined about the owner of the bones? |
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Definition
| the race, height, and age of the skeleton at time of death. |
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Term
| How do female's pelvis differ from males? |
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Definition
| they are generally larger to allow the passage of a child. |
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Term
| which part of the skeleton is the most important to determine race? |
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Definition
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Term
| which other part of the skeleton can be used to help determine the race? |
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Definition
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Term
| which bones are best to determine the height of a person? |
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Definition
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Term
| which direction means in front of something else? |
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Definition
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Term
| which direction means away from the midline of the body? |
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Definition
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Term
| which direction means something is higher than something else? |
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Definition
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Term
| which direction means farther away from any point of reference? |
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Definition
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Term
| which direction means in back of something else? |
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Definition
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Term
| which direction means is lower than something else? |
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Definition
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Term
| which direction means closer to? |
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Definition
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Term
| which direction means toward the midline of the body? |
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Definition
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Term
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Definition
| the study and application of science to legal matters. |
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Term
| 6 types of laws in the U.S. criminal justice system: |
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Definition
1. statutory law: written law: based on the constitution.
2. civil law: deals with the relationships between individuals.
3. criminal law: deals with offenses against an individual.
4. equity law: remedial or preventative.
5. public law: the regulation and enforcement of rights.
6. administrative law: the law dictated by the IRS. |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| evidence that a crime was committed and the accused committed it. |
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Term
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Definition
| statements read to a person at arrest. |
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Term
| direct/testimonial evidence: |
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Definition
| evidence in the form of a statement made under oath. |
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Term
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Definition
| any object or material that is relevant in a crime. |
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Term
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Definition
| define what evidence is admissible and how it can be used for jury. |
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Term
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Definition
| states that scientific evidence must be given by an expert witness and have gained general acceptance in the relevant field of study. |
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Term
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Definition
| states that the trial judge must assume responsibility based on guidelines given. |
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Term
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Definition
| evidence that can be traced back to the to a single source. |
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Term
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Definition
| evidence that is found to be consistent with a particular source. (hair, fibers, soil, glass) |
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