Cell Phone Forensics

1
Cell Phone Forensics

• David Lindquist

2
Overview

• What is Cell Phone Forensics?
• Why is it important?
• What is its purpose in criminal investigations?

3
How Cell Phones Work the basics

• Cellular Signal
• Cell Towers
• Call forwarding
• Call logs
• Public switched telephone network
• Cellular geometry

4
Types of Evidence

• Text messages
• Pictures
• Video
• Call History
• Schedules
• Contacts list
• Emails
• Web sites visited
• Phone Company records
• GPS

5
Contacting the Service Provider

• Can provide
• Call history
• Geographical locations
• Cell tower logs

6
Cell Phones as Evidence

• Turn power off
• Try and get charger
• Isolate the phone from mobile network
• Find connector cable
• Choose forensic software
• Perform analysis

7
Choosing the Right Cable

• Many different types
• Trial and error
• Databases
• Experience

8
Choosing the Software

• Many different types
• Not all programs do the same thing
• Results vary
• Try different combinations
• BitPim
• TULP2G
• SIMCon

9
Cases

• Pictures
• Assault by a minor
• Text Messages
• Murder by a pastor
• Tower Log
• Missing persons

10
Conclusion

• Benefits Outweigh Costs
• Valuable Findings
• Corroborated Evidence