Enrique+Camarena+Case+NT

1. Give at least three examples of how evidence might be destroyed by onlookers at a crime scene.
 * Application and Critical Thinking**
 * They could move the evidence.
 * They could touch the evidence and contaminate it.
 * They could break evidence that is fragile.

2. What important elements are missing from the following crime-scene sketch?
 * Measurements from a certain objects to the body.
 * Measurements of the room and objects in the room.

3. An investigator at a murder scene notes signs of a prolonged struggle between the attacker and victim. Name at least three types physical evidence for which the investigator would likely collect standard/reference samples and explain why he or she would collect them.
 * The body - The body can reveal many secrets about the crime including the cause of death.
 * Any blood - From the blood you can extract DNA and find out whether it is the victim's or suspect's blood. If it was the suspect's blood than you know he was injured and gives you something to look for on suspects.
 * Anything that looks like or could be used as a murder weapon. - If the investigator has this/these then they can test it for fingerprints or help solve the murder.

5. What kind of forensic expert would most likely be asked to help identify human remains in each of the following conditions? a. A body that has been decomposing for a day or two? Coroner b. Fragmentary remains of a few arm bones and part of a jaw? Anthropologist c. A skeleton that is missing the skull? Anthropologist

1. What were the main challenges facing investigators who were collecting evidence in the case? Give specific examples of these challenges. The main challenges that they had to face were the Mexican officials tampering and moving the evidence, the house at 881 Lope De Vega being cleaned and painted and officials living there, they also would not allow the DEA investigators to investigate some places.
 * Case Analysis**

2. Explain how investigators used reference samples to determine that the victims had been held at the residence located at 881 Lope De Vega. They used the soil to prove the two victims were there. They took soil from two other Americans that were murdered and buried and matched it two soil that was at the sight. They also took soil from the two DEA victims.

3. Explain how investigators used soil evidence to determine that the victim's bodies had been buried and later moved to the site where they were discovered. The detectives noticed that the soil found on the bodies differed in color from the soil at the Bravo Ranch. They also saw that there weren't any significant body fluids at the site where the bodies were found so the detectives knew that they were buried somewhere else and then dug up again and brought there.