A focused examination connects technical records to specific questions. The scope determines which sources are collected, which analyses are appropriate and how the results will be explained.
Preserve relevant computer evidence through an acquisition method suited to the source and purpose. A device image, logical collection and targeted file collection capture different material. Documenting source identification, chain of custody, integrity checks and collection exceptions helps later reviewers understand what was acquired and what was outside the collection.
Examine available deleted file remnants, hidden files, recoverable content and records of past file activity. A filename may remain when its contents are unavailable. Overwriting, SSD TRIM, encryption, damage and continued use can limit recovery. The analysis distinguishes recovered files from partial fragments and references to files that could not be recovered.
Correlate available system and application records, including browser history, downloads and local traces of online activity. A timeline can place events in context, subject to clock settings, retention and gaps. Activity associated with an account or device does not, by itself, establish who performed it or why.
Assess local file access records, connected storage history, browser artifacts and sync client traces for questions about possible copying or transfer. Opening a file, attaching a USB drive and transmitting content are different events. Conclusions depend on what the records actually capture and whether other sources corroborate the proposed sequence.
Review available local mail stores, attachments, document metadata and retained versions. These records can help compare content and chronology, while export, conversion and synchronization may affect what remains. Understanding metadata is part of evaluating a document in context, rather than treating a field as proof of authorship.
Assess available originals, file structure, metadata, versions and related computer activity when a document or other digital item is disputed. The examination can identify inconsistencies and test proposed explanations. Missing history, converted files or screenshots may restrict the analysis; no single automated result resolves every manipulation or authenticity question.
A returned laptop may contain records relevant to deletion, copying or use of business information before departure. Start with the devices, files and dates at issue, then compare available activity with the questions counsel or the business needs answered. Device findings can support broader business data theft investigations or intellectual property disputes without establishing theft or intent on their own. Our departing employee investigation overview provides additional context.
A workplace concern may require examination of relevant documents, browser activity or communications stored on a computer. A bounded scope helps focus the technical work on the reported issue while considering alternative explanations. For broader employee misconduct investigations, counsel and HR determine access authority, employment decisions and the handling of personal or potentially privileged material.
When electronically stored information (ESI) from a computer may be relevant to litigation, the collection method affects what is available for later analysis. Questions may involve missing files, disputed production history or activity around key dates. Computer examination can support eDiscovery services for litigation support and a coordinated preservation and collection plan. Counsel determines legal obligations and instructions; the examiner explains technical options and limitations.
A disputed document, attachment or recording calls for examination of available source material and its history. Comparing originals, retained versions and related records can help assess competing explanations. A screenshot or exported copy may omit information present in the source. Findings should distinguish observed differences from inferences about alteration, authenticity or the person responsible.
Related investigation questions. Unauthorized access or suspicious activity on a workstation may also raise device evidence questions. Where the issue concerns payment instructions or account misuse, see wire fraud and business email compromise investigations for the broader investigation scope.
Windows, macOS, Linux and other systems need assessment specific to the source. Device type alone does not establish which extraction or analysis is feasible. Identify the operating system, storage, access conditions and relevant dates during scoping.
| Source | What it may help examine |
|---|---|
| Laptops and desktops | Documents, local mail, browser records and operating system artifacts. |
| Local servers and virtual machines | Relevant stored files, application records and available virtual disks or snapshots. |
| Hard drives and solid state drives | Allocated files, file system records and available deleted data remnants. |
| USB drives, external media and memory cards | Stored content, file system metadata and records that can be compared with the computer. |
What affects each source
When the evidence extends beyond the computer. A local sync folder is not the same as the cloud account, and a local mail file may not contain the full mailbox. Related sources can require separate mobile device examination, cloud-based forensics or email collection. Each source needs its own authority and collection scope.
Collection limits to keep in view. Preservation depends on the source. Live collection can change a running system, and targeted collection excludes material outside its selection. Hash values support comparisons of byte integrity; they do not establish completeness, authorship or correct interpretation. Our discussion of data collection mistakes provides further background on planning the collection.
Computer evidence is strongest when its meaning is explained alongside its limits. File access, copying, upload, receipt and later use are separate questions. An examination should identify which of those events the available records support.
| Available observation | What it can support | What else is needed |
|---|---|---|
| A USB device was connected | The computer recorded a connection event. | Evidence specific to the file and context are needed to assess copying or transfer. |
| A file access record exists | A recorded interaction with a file or path. | The artifact’s meaning, application behavior and corroboration affect interpretation. |
| An account or browser event occurred | Activity associated with that account or environment. | Person attribution requires additional evidence; shared access and automation may matter. |
| Timestamps differ | Recorded dates differ across sources or versions. | Time zones, clock accuracy, copying, conversion and application behavior need assessment. |
| A search returned no matching item | No match was identified in the searched material using that method. | Unavailable sources, retention, search design and collection exclusions limit the conclusion. |
When records are missing. Missing records do not establish that an event never occurred. Deleted content may be unavailable even when traces remain, and encryption may restrict access. These limits belong beside the findings so readers can assess both the conclusion and its reach.
The agreed report explains the questions examined, source material, collection and analysis methods, observations and limitations. Depending on scope, supporting material may include timelines, file comparisons, activity tables and exhibits. Findings should separate direct observations from interpretations and identify questions the available evidence cannot resolve.
When a matter needs a declaration or testimony, discuss those requirements during scoping. Our expert witness and testimony services support technical explanation and review. Documentation and testimony do not guarantee admission, evidentiary weight or a case outcome.
A useful computer examination connects the technical work to the question your team needs answered. Our approach centers on a defined scope, documented methods and findings that readers can follow.
We work with law firms and businesses rather than accepting direct individual consumer engagements. If you are represented by an attorney, your law firm may contact us about the matter. Discuss engagement fit with our team before sending evidence or arranging a device transfer.
Our offices and service locations provide a starting point for discussing logistics. Collection location, transport and any remote option depend on the source and agreed scope.
Cost depends on the number and condition of devices, storage volume, encryption and access, the relevant period, the breadth of the questions and the required reporting. Testimony or additional sources can change the work involved. Deadlines should be discussed alongside these requirements, rather than assumed from the size of a drive.
Describe the issue and the devices you have so we can discuss a suitable scope and pricing. Confirm the authorized scope, deliverables and pricing in writing before authorizing work, and discuss any later expansion before proceeding. A limited initial question may help determine whether broader examination is useful.
Computer forensics examines digital material to address evidence questions and document the basis for the findings. Data recovery focuses on retrieving content; IT support generally focuses on keeping systems operating. These activities can overlap, but their objectives differ. The examination scope determines the collection, analysis and reporting needed. Read more about what a computer forensics service does.
Relevant sources may include laptops, desktops, local servers, virtual machines, hard drives, SSDs, USB drives and memory cards. Feasibility depends on the particular system, version, storage configuration, condition and access. Windows, macOS and Linux sources require different methods. Describe the device and any known encryption or damage during scoping so the available options can be assessed before collection.
Recovery depends on what remains on the source. Overwriting, SSD TRIM, encryption, damage and subsequent use may make deleted content unavailable. Local mail stores, retained versions or other authorized sources may contain relevant material, but they require separate assessment. An examination may identify a reference to a deleted item without recovering its contents. Recovery of a particular file cannot be promised.
The method depends on the source, its state and the question. Collection may involve a device image or a more targeted acquisition. Documentation should identify the source, handling, collection method, integrity checks and exceptions. Write blocking is appropriate for some acquisitions; live collection may change a running system. Hash comparisons support integrity checks without proving that every relevant source was collected.
Available USB history, file references, browser records and sync artifacts may support parts of a transfer sequence. A connected drive does not establish that a particular file was copied, and local traces may not establish successful upload or receipt. Conclusions depend on the artifacts and corroborating sources. Records from the account or the destination device may be needed to address the remaining questions.
Timing depends on device access, storage size and condition, encryption, the collection method and the questions being examined. Analysis and reporting are separate from acquisition; a small source can still require substantial interpretation. Discuss your deadline and intended use at the outset. We need to assess the work and scheduling options before confirming a completion date.
The main factors include the number of devices, data volume, access obstacles, recovery requirements, scope of analysis and reporting needs. Reviewing a defined period or specific event differs from reconstructing broad activity across multiple computers. Declarations and testimony also affect scope. Discuss the questions and available sources with our team, then confirm the proposed work and pricing before authorizing it.
A report can explain the questions, examined sources, methods, relevant observations, supporting exhibits and limitations. Chain of custody records and integrity checks help document handling; analysis must also explain how the records support the conclusions. Counsel determines litigation strategy and presentation. The court determines admissibility, and the judge or jury evaluates evidentiary weight, so neither a collection method nor a report guarantees acceptance or a particular result.
Testimony support can be discussed as part of the engagement, including the report, declaration, deposition or trial requirements. Identify anticipated court deadlines and technical issues early so the required work can be scoped. The examiner explains the methods, findings and limitations within the assigned role. See our expert witness and testimony services for more about that process.
Some sources may support authorized remote collection; others require physical access or a different method. Feasibility depends on the device state, permissions, connectivity, security requirements and material needed. A remote file collection may not capture the same evidence as a device image. Discuss the source before arranging transport or attempting access so the collection method can be matched to the question.
Tell us what kind of computer or storage device is involved, the question you need answered and any relevant deadline. We can discuss the available sources and an appropriate next step. Please arrange evidence transfer with our team before sending sensitive material.
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