What it actually is
Digital forensics is the discipline of recovering, preserving, analyzing, and presenting digital evidence in a way that survives legal scrutiny. It applies to computers, phones, cloud accounts, network logs, surveillance video, and increasingly to vehicles and IoT devices. The deliverable is not "I looked at it." The deliverable is a chain-of-custody documented written report that a court will accept.
The phases of an actual case
1. Intake and preservation
Before anyone touches the device, we document its state — photos, location, who handed it over, when, in what condition. The device is then either imaged on-site (forensic write blocker prevents any modification) or transported under sealed evidence custody. The original device is preserved untouched; all subsequent work happens against the forensic image.
2. Hashing
Before and after imaging, we calculate cryptographic hashes (SHA-256, MD5) of the device and the image. Matching hashes prove the image is bit-for-bit identical to the original. This is the foundation of admissibility — without it, opposing counsel can argue the evidence was altered.
3. Artifact analysis
We parse the image with forensic tools (Cellebrite, Magnet Axiom, FTK, Autopsy, custom tooling) to extract:
- Deleted files and free-space remnants
- Browser history, including private/incognito sessions where artifacts persist
- Application data — messages, photos, location history, transaction logs
- System logs — power events, USB connections, network associations
- Cloud sync artifacts — what synced when, from which device
- Anti-forensic activity — wipers, secure-delete usage, timestomping
4. Timeline reconstruction
Most cases hinge on timeline. Did message X arrive before file Y was deleted? Was the device in location Z at time T? We assemble a master timeline correlating events across multiple artifact sources, surfacing inconsistencies that suggest user behavior — or suggest evidence has been tampered with.
5. Reporting
The report is written for the audience: a court, an attorney, a regulator, or in consumer cases, the client themselves. It includes:
- Statement of qualifications (the certifications that make findings admissible)
- Methodology — what tools, what versions, what configurations
- Chain of custody — every hand-off documented
- Findings stated factually, with citations to specific artifacts
- Limitations — what we could not determine and why
- Exhibits — screenshots, hash records, raw data references
6. Testimony (when needed)
For matters going to deposition or trial, the investigator becomes a qualified expert witness — voir dired, cross-examined, expected to defend every methodology choice. Reports written without that eventual scrutiny in mind do not survive it.
What separates real forensics from "tech consulting"
- Write blockers. If they didn't use one, the evidence is contaminated.
- Documented chain of custody. Names, signatures, timestamps for every hand-off.
- Tool licensing. Court-accepted tools are expensive. Free-tool-only investigations face admissibility challenges in many jurisdictions.
- Practitioner credentials. GCFE, GCFA, EnCE, CCE, CFCE — the alphabet soup matters in court.
- Honest scope. A real forensic practice will tell you what they cannot determine. Anyone who promises certainty before looking at the evidence is selling something else.
Common case types we run
- Personal forensics — stalkerware, account compromise, evidence preservation in protective-order matters
- Attorney-led litigation support — divorce, custody, IP theft, employment disputes
- Enterprise incident response — ransomware, BEC, insider data theft
- Insider threat and fraud — financial crimes, sabotage, exfiltration
