What is examined

Examination of audio and video recordings for possible alterations, breaks, insertions, copying, transcoding and disruption of the original structure.

The examination uses the submitted audio and video materials, storage media, recording devices, voice and speech samples, case documents and the questions posed.

Possible questions

whether the recording is suitable for the task posed;
whether there are signs of alteration or discontinuity;
the content of the relevant recording segment;
which audio or visual features are relevant to the case;
whether the materials and samples provided are sufficient;
whether the findings of a previous examination are substantiated.

What to provide

source files without forwarding through messaging apps, if possible;
the storage medium or recording device;
the start and end times of the relevant segments;
voice and speech samples for identification questions;
an investigative order, a court ruling or draft questions;
information about the recording conditions.

Pricing

from RUB 90 000. The exact cost depends on the recording's duration, material quality, number of segments and questions, the need for a report review and urgency.

A continuity check considers the recording's consistency and signs of changes to its sequence. The examination must take into account that the file may have undergone ordinary compression, export or recording through a messaging app.

Subject of examination

The complete audio and video recording
Transitions, temporal structure and signal consistency
Available originals and subsequent copies

Sample questions for the expert

What signs of disruption to the sequence or processing have been detected?
Can they be explained by normal device operation or transformation?
Are the sound, image and time data consistent?
What limitations prevent a conclusion about continuity?

The final questions are formulated according to the objects and circumstances of the particular task.

What to prepare

The earliest file and all available versions
The source storage medium, where possible
Information about recording, export and sending
Disputed time intervals and specific questions

How the examination is conducted

Technical properties, transitions and consistency of content are compared. Alternative causes of the signs are considered before a conclusion about possible interference.

Scope and limitations

A single fault or break does not mean intentional editing. Failure to detect signs of interference is not equivalent to proof of the authenticity of every circumstance of the event.

What the deliverable records

The report describes the sections checked, the signs detected and the limits of conclusions about the recording's sequence.

Cost and terms

from RUB 90 000. The exact cost depends on the recording's duration, material quality, number of segments and questions, the need for a report review and urgency.

Inquiry

Send a recording or describe the task

You may send an audio or video file, a link, an investigative order, a court ruling, draft questions or an existing report for review.

voice and spoken speech;
the acoustic environment and audio recording traces;
video images and video recording traces;
editing, continuity, the recording device;
report review and questions for court.

Type of examinationYour nameContact phone number or email *Briefly describe the task *Attach materials

Up to 10 files of 10 MB each, up to 15 MB in total. Preserve source recordings and metadata without resaving. Arrange the transfer of large files and storage media separately by email.

I give consent to the processing of my personal data for the purpose of considering and responding to my enquiry.

How data is processed: Personal Data Processing Policy. Attach only materials relevant to the examination; redact unnecessary data about other people.

Leave blank

For a preliminary assessment, please specify the file format, recording source, start and end times, recording device, and availability of the source file and voice samples.

Attachments: up to 10 files of up to 10 MB each, with a maximum combined size of 15 MB. If a file is rejected, the enquiry is not sent.

Signs of editing and discontinuity