Name the techniques that are used in real-life (industry) to analyze the evidence collected from a crime scene below?Evidence collected from a crime scene - 1. Bloodstain 2. Post mortem gastric...

Name the techniques that are used in real-life (industry) to analyze the evidence collected from a crime scene below?

Evidence collected from a crime scene -

1. Bloodstain

2. Post mortem gastric juice sample

3. Tablets (drugs)

4. Hair

5. Fingerprint

6. Memory stick (USB)

Name the techniques used in real-life (industry) to analyze the evidence collected from a crime scene above?

Expert Answers
dano7744 eNotes educator| Certified Educator

1. Bloodstains found at a crime scene depending on the size can be used to estimate how much the victim bled. If a stain is very small it would indicate a minor injury, if a very large stain is found this may indicate the victim is deceased. Where were the bloodstains found ? Ceiling,floor,doorknob ? etc. Depending on where they are found will give you an indication of the type of weapon used. Is there blood spatter ? or just a pooling of blood ? DNA can be obtained from the bloodstain.

2. A post mortem exam of gastric juice or more importantly gastric contents can give you information about the victim. This may help establish a time line of events in regards to the victim's last hours. Food takes a certain amount of time to pass through the GI tract.

3. Drugs or pharmaceuticals found at the scene can provide a wealth of info., may lead to the establishment of motive. May help determine the cause of death after toxicology studies. Is the drug licit or illicit ? Can help you connect the dots as far as availability of the substance in the local community.

4. Hair is considered trace evidence and can be used to include or exclude suspects and can be used to obtain a DNA sample that might tell you who the perp. is.

5. Fingerprints can be fed through the national system to see who they belong to if the found prints are on record. If the person who left the print had ever been arrested.

6. USB or computer device like a jump drive can be analyzed by the IT guys and may reveal much needed info.