Phisycal evidence
1. Physical evidence includes tangible objects, including weapons, trace evidence like hair, blood or fibers, and fingerprints. Documentary evidence is any type of written or recorded evidence, such as a recording of a telephone conversation or a video recording of a crime. Demonstrative evidence is evidence that is used to help recreate or illustrate a crime.
2. Individual characteristics are properties associated with a common source to a high degree of certainty. The way a person’s eye twitches when they lie or the way they talk.
3. The difference is that class characteristics can only be in group and not in a single source.
4. Physical properties are those that describe a substance or object without referring to any other substance. Chemical properties are those that describe what happens when a substance reacts with another substance.
5. Forensic scientists take great care in collecting and preserving soil samples. If soil is found on the bottom of a shoe, for example, the soil is left on the shoe and the entire shoe is taken to the crime lab. The object must also be stored in such a way that any pieces of dirt that may fall off the object are retained.
6. They are specific because they need to get the evidence correct so they can catch the killer. If they were careless they would never catch the killers and they would be fired.
7. The soil is probably the most important because that is the way you find out what shoe or tire track and that leads to the killer.
8. They look for class characteristics because it is easy to find multiple killers like that.
9. I think the hardest part would be trying to get the full impression without the dirt crumbling and being destroyed.
10. Yes I would because if there were one killer then it would be easy to tell if he/she was lying or telling the truth. They would not always be right and people would be wrongfully accused.
2. Individual characteristics are properties associated with a common source to a high degree of certainty. The way a person’s eye twitches when they lie or the way they talk.
3. The difference is that class characteristics can only be in group and not in a single source.
4. Physical properties are those that describe a substance or object without referring to any other substance. Chemical properties are those that describe what happens when a substance reacts with another substance.
5. Forensic scientists take great care in collecting and preserving soil samples. If soil is found on the bottom of a shoe, for example, the soil is left on the shoe and the entire shoe is taken to the crime lab. The object must also be stored in such a way that any pieces of dirt that may fall off the object are retained.
6. They are specific because they need to get the evidence correct so they can catch the killer. If they were careless they would never catch the killers and they would be fired.
7. The soil is probably the most important because that is the way you find out what shoe or tire track and that leads to the killer.
8. They look for class characteristics because it is easy to find multiple killers like that.
9. I think the hardest part would be trying to get the full impression without the dirt crumbling and being destroyed.
10. Yes I would because if there were one killer then it would be easy to tell if he/she was lying or telling the truth. They would not always be right and people would be wrongfully accused.