Digital forensics magnifying glass examining data streams with scales of justice
Cellebrite Certified Examiner

When the Evidence
Doesn't Add Up

Defense attorneys rely on Vanguard to examine digital evidence with the same rigor the prosecution uses — and find what they missed.

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Forensics examiner collecting digital evidence at a crime scene with arrest in background
Defense-Focused Expertise

Give Your Client
a Fighting Chance

From deleted texts to metadata discrepancies — we uncover the details that reshape a case before it ever reaches a jury.

Explore Our Services
Forensics examiner at a multi-monitor analysis workstation reviewing device data
Court-Ready Analysis

Rigorous Methodology.
Defensible Results.

Every examination is fully documented, chain-of-custody preserved, and prepared to hold up under cross-examination and Daubert scrutiny.

About Vanguard
Why Vanguard

The Prosecution Has a Forensics Expert.
Now You Do Too.

Digital evidence is rarely as straightforward as the prosecution makes it sound. Timestamps can be manipulated. Location data has margins of error. Deleted doesn't always mean gone — and gone doesn't always mean deleted.

At Vanguard, we apply the same certified tools and forensic standards used by law enforcement — but we're asking different questions. We're looking for methodology errors, missing context, and exculpatory data that the police arn't looking for..

More about our approach
Mobile
iPhone, Android, and legacy device forensics using industry-leading certified tools.
Cloud
iCloud, Google, social media, and third-party platform data analysis and extraction.
Computers
Full extraction and analysis of computers and hard drives, including deleted files, browser history, and user activity.
Video & Photos
Expert analysis of video footage and still photos for authenticity, content examination, and metadata verificaverteest
Forensic Services

Comprehensive Analysis Across
Every Type of Digital Evidence

Mobile Device Forensics
Full extractions — calls, messages, app data, deleted content
Computer Forensics
Hard drive imaging, file recovery, browser and activity history
Expert Witness Testimony
Court testimony, depositions, and jury-accessible explanations
Evidence Rebuttal Reports
Independent review of prosecution's forensic methodology
Cloud & Account Extraction
iCloud, Google, social platforms, and third-party app data
Location Data Analysis
Cell phone location data and timeline reconstruction
Social Media Evidence Review
Authentication, metadata, and preservation of online evidence
Text Message Analysis
Analysis of every text platform, not just the native phone app
Photo & Video Authentication
Metadata examination, tampering detection, source authentication
Deposition Preparation
Attorney prep sessions and technical briefing support
SQLite & App Data Analysis
Database forensics from messaging apps, browsers, and more
Chain of Custody Documentation
Legally defensible handling records from intake to testimony
Our Process

From First Call to Final Testimony —
Here's What to Expect

1
Initial Case Review

We start with a free consultation to understand what digital evidence is at issue, what the prosecution has alleged, and where the gaps might be.

2
Evidence Intake & Imaging

Devices and data are received under strict chain-of-custody protocols. Forensic images are created before any analysis begins — preserving the original evidence.

3
Analysis & Reporting

We conduct a thorough examination using certified tools, consult with the team for next steps such as how to find missing data or aquiring data the prosecution doesn't have.

4
Testimony & Support

We prepare with your team for depositions, Daubert challenges, and trial. On the stand, we communicate complex technical findings in terms a jury can follow.

David Thompson, Founder of Vanguard Digital Forensics

Meet the Founder

David Thompson

With 27 years in law enforcement — including time as a Detective Sergeant overseeing a digital forensics lab and violent crimes unit — David Thompson built Vanguard to give defense attorneys the same forensic firepower the prosecution has.

Full Biography →

Have a Case With Digital Evidence?
Let's Talk Through It.

Whether you need a full forensic examination, a second look at the prosecution's analysis, or just want to understand what the digital evidence actually shows — we're available for a no-obligation consultation.