TN v Steven Wiggins Trial Day 2-Direct Exam-Agt Andrew Graves - TN Bureau Of Investigation

TL;DR

Agents process a crime scene, take evidence samples, and analyze findings in a detailed investigation.

Transcript

all right anything before we need to bring the drill in we are ready for the jury sorry to interrupt you've got to stand up and speak loudly if you want what were you going to say I'm sorry uh we had one witness from the TBI Mr agent Andrew Graves followed by another TBI agent uh Miranda guidance to photographs of the scene at Bear Creek Valley Roa... Read More

Key Insights

• 🎑 Thorough documentation and evidence collection are vital in crime scene investigations.
• 🥼 Graphic photographs provide valuable insight for forensic analysis at the lab.
• 🔥 Different types of evidence samples, such as burnt debris and gunshot residue, are collected and processed.

Questions & Answers

Q: What tasks do the agents perform when first arriving at a crime scene?

Upon arrival, agents document the scene, take photographs, and communicate on the best approach for evidence collection.

Q: How do agents ensure the preservation of evidence like the vehicle at the crime scene?

The vehicle is tented to protect against weather, doors are shut, and the vehicle is towed back to the lab for processing.

Q: How are gunshot residue samples collected from a crime scene vehicle?

Agents use adhesive tabs to collect gunshot residue particles by lightly touching surfaces where residues might be present.

Q: What happens to the evidence samples collected from the crime scene post-collection?

The samples are packaged, submitted to evidence receiving, given unique exhibit numbers, stored in evidence vaults, and later tested by forensic scientists.

Summary & Key Takeaways

• Agents investigate a crime scene at Bear Creek Valley Road, documenting evidence and taking photographs.

• Graphic photographs are taken of Sergeant Baker's body in a patrol vehicle, showing burns and blood evidence.

• Samples of burnt debris, accelerants, and gunshot residue are collected for further analysis in the lab.