Jeffrey Willis Hearing Jessica Heeringa Part 6 12/09/16

TL;DR

Lieutenant Jephthah Crump provides expert testimony on firearm examination for a homicide case.

Transcript

Jephthah Crump CR UMP judge judges for the record I just want to make sure that I need to create this in our sidebar conversation I'm going to offer the first lieutenant's qualifications in the area of firearm is to mark identification as an expert mr. lieutenant Trump will be received under Michigan Rule of Evidence 702 as an expert in the area of... Read More

Key Insights

• 💋 Lieutenant Crump serves as an expert witness for firearm and tool-mark identification in criminal cases.
• #️⃣ Chemical etchants can be utilized to reveal obscured serial numbers on firearms.
• 🐚 The examination of shell casings and bullets can provide crucial evidence in identifying the firearm used in a crime.

Questions & Answers

Q: What expertise does Lieutenant Crump have in the area of firearm examination?

Lieutenant Crump is recognized as an expert in firearm and tool-mark identification, specializing in examining firearms for forensic evidence in criminal investigations.

Q: How does Crump restore obscured serial numbers on firearms?

Crump uses chemical etchants to potentially reveal obscured serial numbers, and some manufacturers may have secondary serial numbers that can be recovered to identify the firearm.

Q: What conclusions did Crump reach regarding the shell casings and bullets in the Rebecca Bloch homicide case?

Crump determined that the shell casings were fired from the same firearm and classified the bullets based on their caliber, lacking individual characteristics for a specific identification.

Q: How did Crump match the evidence to the firearm in the case?

By conducting test shots from the firearm and comparing them to the evidence, Crump confirmed that the shell casings and bullets retrieved from the crime scene were fired from the same firearm.

Summary & Key Takeaways

• Lieutenant Jephthah Crump testifies as an expert in firearm and tool-mark identification for a homicide case.

• He examines a Walther P22 handgun, shell casings, and bullets related to the Rebecca Bloch homicide.

• Crump identifies the firearm used in the crime through examination of shell casings and bullets.