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Mobile Device Chain of Custody

Defensible preservation, collection, and documentation of mobile devices — and analysis of whether the other side’s handling holds up.

Why It Matters

Evidence can be lost or altered before anyone analyzes it

Phones sync, update, and overwrite. A device left powered on, connected, or unisolated can change between seizure and examination. Preservation failures and custody gaps are frequently decisive.

  1. STEP 01

    Identification & legal hold

    Identify the device, custodian, and accounts; issue and document a defensible hold.

  2. STEP 02

    Isolation & preservation

    Isolate from networks to prevent remote wipe, sync, and updates that can alter evidence.

  3. STEP 03

    Collection & imaging

    Acquire with an appropriate, documented method, recording tool, version, and device state.

  4. STEP 04

    Documentation & handling log

    Maintain a complete record of who handled the device, when, and why — from seizure to analysis.

  5. STEP 05

    Verification

    Verify integrity (e.g., hashing where applicable) and the reproducibility of the acquisition.

For Both Sides

Establishing — or challenging — custody

We help counsel build a defensible custody record, and we evaluate whether an opposing party’s preservation and handling were sufficient and documented.

  • Was the device isolated to prevent remote changes?
  • Was preservation timely, or did sync and updates intervene?
  • Was the acquisition method documented and appropriate?
  • Is there a complete, unbroken handling log?
  • Can the acquisition be independently verified and reproduced?

Get Expert Help With Mobile Evidence

Preserving, collecting, or challenging a device?

Act early — preservation failures are hard to undo. We can advise on defensible handling or evaluate the other side’s.

Submitting a request does not create an attorney-client, expert, or consulting relationship. Do not send privileged or confidential materials until a conflict check is complete and an engagement agreement is in place.

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