Chapter 3 - Chapter 3 1 The process of identification determines a substances physical or chemical identity with as near absolute certainty as

Chapter 3 - Chapter 3 1 The process of identification...

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Chapter 3 1. The process of identification determines a substance’s physical or chemical identity with as near absolute certainty as existing analytical techniques will permit. 2. The number and type of tests needed to identify a substance must be sufficient to ELIMINATE all other substances from consideration. 3. A(n) Comparison analysis subjects a suspect specimen and a standard/reference specimen to the same tests and examination in order to determine whether they have a common origin. 4. Probability is the frequency of occurrence of an event. 5. Evidence that can be traced to a common source with an extremely high degree of probability is said to possess individual characteristics. 6. Evidence associated with a group and not with a single source is said to possess CLASS characteristics. 8. The value of class physical evidence lies in its ability to corroborate events with data in a manner that is, as nearly as possible, free of human error and bias. 11. The believability of EYEWITNESS accounts, confessions, and informant testimony can all be disputed, maligned, and subjected to severe attack and skepticism in the courtroom.

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