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You are here: Department of Photo-Technical, Portrait, Audio and Video Expertises

About the Department
Main directions of the department’s expert activities are as follows:
Type: Video-audio records.
Code: 04
Subtypes of expertises:
04-01: Expertise of voice and oral speech;
04-02: Expertise of the environment, conditions, materials and traces of audio records;
04-03: Expertise of the conditions, means, materials and traces of video records.
Type: Photo-technical and portrait.
Code: 05
Subtypes of expertises:
05-01: Expertise of photographs (photo images) and its productive technical means;
05-02: Expertise of photograph materials;
05-03: Human identification by photographs (photo images).

Main activities of the department are as follows:
1. Photo-technical and portrait expertise:
- Quality improvement of photo images (photographs),
- Automated portrait identification (the result can be used as a basis for forensic anthropological expertises).
2. Video record expertise:
- Determination of video type facilities, examination of video record to find out mounting or computer evaluating traces;
- Digitization of the video records, separation of concrete video image, improvement of quality and examination.
3. Audio record expertise
- Examination of audio record to find out mounting or computer evaluating traces;
- Improvement of the audio record quality (noise cleaning for deciphering);
- Individual voice identification, record deciphering for determination the circumstances of the case.

The tasks mentioned above are divided into two groups:

1. Identification tasks, when coincident and different features of investigative objects are being determined (photo-portrait and audio identification);

2. Tasks of investigative nature, when production and evaluation forms, used technical means of investigative object are being determined, realizing deciphering of records (in the case of audio records), improvement (in the case of audio, video records and portrait examination), and diagnostic expertise (definition of geometrical sizes of the objects and subjects depicted on photo/video image, detection of acoustic environment).

Besides the forensic expertises, the Photo-Technical, Portrait, Audio and Video expertises department carries out scientific-methodical, scientific-research, scientific-technical, scientific-educational and scientific-experimental-analytical works. Particularly according to the contract on “Maintenance and Development of Scientific and Scientific-Technical Infrastructures” signed between RA National Academy of Sciences and RA NAS National Bureau of Expertises, the Photo-Technical, Portrait, Audio and Video Expertise Department implements scientific-methodical works on specialized topic of “The current problems of video recording expertises based on the video materials received from video observational systems (Topic Supervisor S. Badalov)”.

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