Criminal justice

Criminal justice

1. The chain of custody of evidence is a record of who had custody of the evidence, when and at what time they came into contact with it, the circumstances under which they accessed it, and whether any tests were conducted on the experiment (page 79).
2. 2. Cross-contamination of evidence is the contamination of one piece of evidence with materials found on another object.
3. An evidence bag should be labeled with the evidence item number and description of the bag’s contents (page 93).
4. Individual characteristics of evidence describe a piece of evidence’s unique characteristics, whereas class characteristics classify it as part of a group of objects.
5.  A presumptive blood test is used to determine if a substance collected at a crime scene might be blood (page 82).
6. An alternate light source is used to detect evidence that may not be seen by naked eyes. Some applications of ALS include detection and collection of hair and fiber and detection of blood at a crime scene.
7. Biological evidence should not be packaged in plastic containers. This is because plastic containers may cause decomposition of biological evidence.
8. A questioned document examination is the analysis of the authenticity of a document used in a legal case. It involves an examination of a variety of documents, whether written, typed, or printed. On the other hand, graphology entails the determination of personality traits based on a person’s handwriting.