Watch Live: Iowa Family Murders Trial — IA v. Alexander Jackson — Day Three

TL;DR

Investigator conducts detailed analysis of shell casings and firearm at crime scenes.

Transcript

all right so don't ever foreign thank you thank you foreign thank you the Judgment over here okay sorry I meant to say that for sure let me know when everybody was ready so all right so now all right Council make sure your mics are on we're on the record uh outside the presence of the jury we have Mr Jackson and all Council present we're here to ma... Read More

Key Insights

• 🖐️ Shell casings play a crucial role in forensic investigations and are used to link firearms to crime scenes.
• 🍻 DNA swabs collected from firearms can provide potential genetic evidence to link individuals to weapons.
• 🐚 Use of NIBIN helps trace shell casings back to specific firearms involved in criminal activities.

Questions & Answers

Q: How does Investigator Bozenberg collect DNA swabs from the firearm at the crime scene?

Investigator Bozenberg uses sterile swabs and water to swab specific areas of the firearm such as the trigger, grip, and loading area to collect potential DNA evidence.

Q: Why did Investigator Bozenberg swab those specific areas on the firearm?

Investigator Bozenberg chose high-contact areas on the firearm that would likely have been touched during the commission of a crime to collect DNA swabs for potential evidence.

Q: What is NIBIN, and how is it used in forensic investigations?

NIBIN stands for the National Integrated Ballistic Identification Network and is a database that stores shell casings' firing pin impressions to link them to specific firearms used in crimes.

Q: How does the triage process work when shell casings are collected at a crime scene for NIBIN analysis?

Investigators group shell casings based on characteristics like brand, caliber, and firing pin impression shape to determine which samples to submit to the NIBIN database for comparison against other casings in the region.

Summary & Key Takeaways

• Investigator examines shell casings and firearm at various crime scenes.

• Shell casings match in caliber and brand consistency across different locations.

• Use of DNA swabs to collect potential DNA evidence from the firearm.