The pros and cons of relying on modus operandi and signature in a serial homicide investigation.

Choose one of the following topics relevant to evidence and procedures: 1. Documentation, collection, and preservation of DNA evidence 2. The pros and cons of relying on modus operandi and signature in a serial homicide investigation. 3. Discuss bitemark examinations, document examinations, and microscopic hair examinations and exactly why each is now considered "junk science". 4. Discuss the impact of visual aids in the courtroom and how they assist in explaining forensic science to the jury. Provide examples drawing from specific forensic disciplines such as fingerprint analysis or ballistics. 5. Discuss the different methods of documenting and searching a crime scene. What are the pros and cons of relying on 3D imaging systems? Remember that statistics, studies and case examples add depth to your writing.