Glossary

The vocabulary, without the assumption that you already have it.

Definitions written for the person deciding rather than the person already inside the field. Where a term is used loosely in the industry, that is said rather than smoothed over.

A
Admissibility

Whether a court will accept the evidence at all.

The question of whether evidence can be considered by a court, which turns on how it was obtained, how it was handled and whether it can be verified, rather than on which product surfaced it.

No forensic tool makes evidence admissible. What a tool can do is make verification practical enough that the examiner actually performs it.

Air-gapped

A network with no connection to any external network.

An environment physically or logically isolated from the internet and from other networks. Forensic laboratories frequently work this way, which means any software that quietly requires a connection, including for licensing, is unusable there.

Audit log

The record of what the software did and what came back.

A written record of actions and results, held so that a decision can be reconstructed later. Where an AI assistant is involved, the log is what allows a court to see the sequence that produced a finding rather than only the finding.

Automatic coverage

Coverage generated by the software rather than shipped by a vendor.

The property that an application nobody has implemented support for can still be read, because the software works out the structure itself and an examiner validates the result.

The alternative, which is the industry norm, is that coverage arrives in a vendor release and an unsupported application is a dead end until it does.

C
Carving

File carvingDeleted record recovery

Recovering records that were deleted but not yet overwritten.

Recovering data from unallocated space, journals and other remnants where a record has been marked as deleted but its contents survive.

A carved record must always be presented as recovered rather than as live, because the two carry different evidential weight. VERA marks recovery status alongside provenance for exactly this reason.

Chain of custody

The documented history of who held the evidence and when.

The record showing every person who handled an item of evidence, when, and what they did with it. A break in that chain is one of the most reliable ways for evidence to be excluded, regardless of what it contains.

Analysis software does not maintain the physical chain of custody, but it can either support it or quietly undermine it. Read-only evidence access and a complete action log are the parts that matter.

D
Data sovereignty

Control over where data sits and whose law reaches it.

The principle that data remains under the jurisdiction and control of the organisation holding it. For European public authorities this covers both the physical location of the data and whether any foreign legal instrument could compel its disclosure.

Direct award threshold

The value below which no formal tender procedure is required.

The contract value under which a public body may purchase without running a formal procurement procedure. The figure varies by country and by contracting authority.

It is relevant here because it is usually the practical route to a first pilot with a small supplier.

E
Evidence backlog

Seized devices waiting for examination capacity.

The queue of devices seized but not yet examined. It grows when the volume of data per device rises faster than the number of examiners, which is the position most laboratories have been in for several years.

F
Full File System extraction

FFSPhysical extractionLogical extraction

A complete copy of a device's file system, not a summary of it.

An acquisition that copies the entire file system of a device rather than the subset an application chooses to expose. It includes application databases, caches, configuration files and system traces, which is why it contains far more than a logical extraction and why it takes far longer to review.

Commonly abbreviated to FFS. It is the input VERA is designed for.

H
Human validation gate

Human in the loop

A mandatory human acceptance before anything generated is used.

A step in the pipeline that cannot be skipped: a generated mapping is shown to the examiner as a preview over the real data, and it is not applied to the case until the examiner accepts it.

It matters legally as much as technically, because it is what keeps a human decision at the point where an automated system could otherwise become the author of a finding.

L
Logical extraction

A partial acquisition limited to what the device will hand over.

An acquisition that collects the data the device's own interfaces expose, typically contacts, messages, call logs and media. It is faster and less invasive than a full file system acquisition, and it misses everything an application keeps to itself.

M
Mapping

A description of how to read one source into a viewer.

A definition that says how the contents of a given source, for example an application's database, should be read and reorganised into the fields a viewer expects: a timestamp, a sender, a message body, a direction.

In VERA a mapping is generated automatically where the source has not been seen before, reviewed by an examiner, and corrected in a visual editor where needed. It contains no evidence, only the description of how to read a structure.

Multimodal indexing

Making images and video searchable by what they contain.

Indexing media so it can be retrieved by content rather than only by filename, timestamp or hash. It matters most where media volume is the whole problem, and it is never a substitute for a human examiner's judgement about what an image shows.

N
Node editor

A visual way to correct a mapping without writing code.

An editor in which a source sits on one side, the fields a viewer expects sit on the other, and the examiner connects them, inserting transformations where a value needs reformatting or translating.

It exists so that examiners keep control of the result, not because they are expected to build mappings from scratch.

O
On-premise

Self-hosted

Running on hardware the customer owns and controls.

Software installed and operated inside the customer's own infrastructure rather than accessed as a hosted service. For seized-device data this is often not a preference but a hard requirement, because the data cannot lawfully or politically be placed in a third-party environment.

Q
Query expansion

Automatically searching for the words the examiner did not type.

Broadening a search to related vocabulary so that a query for one term also retrieves its synonyms, its slang forms and the coded language used in its place. Particularly relevant in narcotics and trafficking work, where the vocabulary changes between groups and over time.

R
Read-only access

Opening evidence without any ability to change it.

Accessing an evidence store in a mode that cannot write to it. It protects the integrity of the original and it removes an entire category of question in a security review and in court.

Retrieval-augmented generation

RAG

An AI system that must retrieve before it answers.

An approach in which a model answers from documents retrieved at query time rather than from what it memorised during training. Widely abbreviated to RAG.

In a forensic context the value is not the generation but the retrieval: the answer is anchored to specific records, which is what makes citing a source possible at all.

S
Seal

ScelléExhibit

The administrative unit an item of seized evidence travels in.

In French practice, a scellé: the sealed item entered into the case with its own reference, which is the unit an examination is organised around. A case can contain many seals, and a seal can contain more than one device or storage medium.

VERA organises work the same way, so that the software's structure matches the procedure rather than the other way round.

Source escrow

Software escrow

Source code held by a third party against vendor failure.

An arrangement in which a copy of the software's source code is deposited with an independent third party and released to the customer if defined conditions occur, such as the vendor ceasing to trade.

It is the standard contractual answer to the continuity risk of buying from a small supplier.

Source traceability

Provenance

The ability to get from a finding back to the record that produced it.

The property that any statement in a report can be followed back to a specific record: which file, in which path, which table, which row. Without it, a finding is an assertion.

In VERA, provenance is carried by the record itself rather than reconstructed at display time, so a citation still resolves after the mapping that produced it has been revised.

T
Telemetry

Usage data a product sends back to its vendor.

Automatic reporting of how software is used, sent to the vendor. Normal in commercial software and a serious problem in a forensic context, because the metadata alone can reveal case activity.

VERA collects and transmits none, which is also why the vendor cannot observe how a deployment is used.

Time to evidence

How long from seizure to a usable investigative finding.

The interval between a device arriving and an investigator having something they can act on. It is a more useful measure than processing throughput, because a device fully processed and never read has produced nothing.

See it running on a real extraction

Thirty minutes, on fictitious data, with time for your questions. If VERA does not fit what your service needs, that is a useful answer too.

Every request is reviewed before access is granted.