Discuss the scientific approach used to identify and collect various types of trace, blood, and/or other biological evidence that has the potential to resolve a criminal investigation.

1. Provide a detailed example of clues that can be gleaned from the detailed observation, examination, and analysis of at least two specific types of trace and/or biological evidence.

2. What procedures must be followed by the crime scene investigator during the evidence collection process to ensure that accurate and reliable scientific results can be obtained from a forensic analysis of the evidence?

3.Include in the paper, how a crime scene investigator would defend their research in a court of law.