Digital forensics · Incident response · Cyber readiness

MOBILE PHONE FORENSICS

Mobile phone forensics for litigation

Understand the communications, activity and records that matter to your case. DFI helps lawyers and litigants identify relevant phone evidence, preserve it through a supported forensic extraction, and turn the data into clear findings and usable records.

Phone evidence can include text messages, WhatsApp, WeChat and other messaging-app records, photos, files and calls.

COMMUNICATIONS, ACTIVITY & DIGITAL TRACES

More than what appears on the screen.

A phone can contain a detailed record of communications and activity. We advise which sources can address the fact or legal issue you need to establish, then focus the examination on the relevant people, dates and events.

Messages & conversations

Text messages (SMS, MMS and iMessage), WhatsApp, WeChat and other messaging-app records can reveal what was communicated, when, and with which accounts. We examine surrounding exchanges, attachments and available message metadata—not just isolated screenshots.

Photos, video & attachments

Original media and available metadata may connect a file to a date, device, location or conversation. We examine the records in context and distinguish original files from forwarded, edited or exported copies.

Calls & contacts

Available call history, contact records and related app activity can help reconstruct a sequence of communications. A saved contact name alone does not establish who used an account or device.

Location & device activity

Where available, location artifacts, application records and system activity may help place events in sequence. Their precision and meaning depend on the source; a device record does not by itself prove a person’s actions.

App data, backups & related records

Application databases and authorized backups may retain material that is not visible in the phone’s normal interface. Related devices or cloud sources can sometimes fill gaps, subject to separate access and collection authority.

Available data varies by device, software, application, access and retention. We assess the actual sources rather than promising that every record or deleted item can be recovered.

FORENSIC EXTRACTION & PRESERVATION

Preserve the phone’s data before working with it.

A forensic extraction collects accessible data in a documented form for examination. We select the supported approach for the particular phone and the agreed scope—not a one-size-fits-all download.

Your phone

Text messages, WhatsApp, WeChat and other messaging-app records

Verified collection

Preserved extraction and documented handling

Context & analysis

Conversations, activity and timelines examined together

Usable records

Relevant communications and clear findings for legal review

The right collection for the device

The phone’s model, software, lock state and available access determine the options. A supported acquisition may collect accessible records, a backup, or file-system data. Different methods provide different coverage; a deeper collection is not automatically available or necessary for every matter.

Preserved source. Controlled examination.

We document the device, collection method and handling, record relevant integrity checks, and preserve the acquired evidence. Analysis takes place on controlled working copies. Where the device or acquisition changes data, material interactions and limitations are documented.

Integrity verification is not a claim that every item was collected, that a message is true, or that its author has been established. Those are separate matters for analysis.

ANALYSIS THAT ADDRESSES YOUR MATTER

Connect the records to the facts.

We work with you and your counsel to understand what needs to be established. Our examination then tests the available phone records against that need, with independent findings explained in plain language.

Reconstruct a conversation

Review relevant text messages, WhatsApp, WeChat and other messaging-app conversations with their surrounding exchanges, participants, attachments and timestamps. Identify whether a supplied screenshot or export omits context that is available in the source records.

Establish a sequence

Bring messages, calls, media and application activity into a coherent timeline. Explain timestamp differences and source limitations rather than treating every displayed time as directly comparable.

Assess a disputed record

Compare an allegation, document or account of events with the available evidence. Distinguish what the data supports, what it contradicts and what cannot be determined from the material collected.

Expert advice as the evidence develops

We explain emerging findings, advise when another device or source may be useful, and help scope further work where it can add value. You receive a clear account of the evidence—not simply a large extraction to interpret yourself.

VERIFIED RECORDS & CLEAR REPORTING

Communications and findings lawyers and litigants can use.

Some matters need selected communications or artifacts produced in a usable form. Others require a detailed analysis and expert report. We agree the deliverables with you before the work begins.

Communications & attachments

Relevant text-message, WhatsApp, WeChat and other messaging-app threads and associated files, organized with the available participants, dates and context and linked back to the examined source.

Chronologies & selected artifacts

Focused schedules of relevant calls, activity, media or other records, with source references and explanations of material gaps or limitations.

Plain-language forensic findings

A clear explanation of methods, observations and conclusions, with supporting records. Expert opinion and testimony can be scoped where required.

Prepared for scrutiny and presentation in court.

We preserve and document the source evidence, relevant integrity checks and the basis for our findings so the work can be reviewed and explained. Records are prepared for legal use; admissibility is ultimately determined by the court.

DEVICE ACCESS

A locked or damaged phone needs an individual assessment.

Tell us the make, model, software version if known, and current condition. We can assess appropriate access or collection options within your authority and scope. Unlocking, extraction and deleted-data recovery depend on the particular device and cannot be guaranteed.

START WITH YOUR MATTER

Tell us what the phone evidence needs to establish.

We will help identify the relevant sources, collection scope and intended records or report. Use the contact form for an initial inquiry—not to upload evidence or send credentials.

  • Describe the issue, relevant applications, people and date range, including any deadline.
  • Tell us the model, operating system and current condition if known; do not change the device to obtain details.
  • Keep the phone and relevant originals secure. Avoid resets, updates, repeated passcode guesses or recovery tools; obtain device-specific handling advice.
  • Identify who can authorize access. Arrange passcodes or other credentials only through an agreed secure channel, not this website.

PRACTICAL GUIDANCE

What to expect.

Can DFI recover deleted messages?

We assess what the particular device and remaining data support. Some records or fragments may be available, while others are inaccessible or no longer exist. No acquisition method guarantees deleted-message recovery. Relevant backups or other authorized sources may provide additional material.

Is a screenshot enough?

A screenshot can identify the issue and may be relevant evidence, but it usually does not show the full source, selection process or surrounding records. Keep the original screenshot and device. We can assess whether a documented source collection would help resolve authenticity, completeness or context questions.

Do you need the physical phone?

For a phone acquisition, DFI works with the physical device and documents its handling. If you have only a backup, export or report, tell us what is available. We can discuss whether that material supports a useful examination and what additional sources may be needed.

Will I receive every record on the phone?

Not necessarily. What can be collected depends on the source and method; what is examined and delivered also depends on the authorized scope. We agree relevant dates, applications, privacy considerations and output format rather than assuming that every accessible record should be produced.

Explore text messages, WhatsApp, WeChat and other messaging-app evidence

PRACTICAL GUIDE

Mobile Phone Evidence for Litigation

A practical guide to text messages, WhatsApp, WeChat and other messaging-app evidence, forensic extraction and preservation, analysis, and records prepared for legal use.

4 pages · PDF · October 2026

Download the PDF guide

YOUR NEXT STEP

Discuss the mobile evidence in your matter.

Speak with DFI about the device, the facts you need to establish and the records or reporting your legal team requires.

Consult a digital evidence expert