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Video Forensic Examination: Integrity, Cuts and Deepfake Detection

Frame-by-frame analysis to establish whether a video is intact or has been manipulated.

A video may have been trimmed right before the decisive moment, sped up, reframed or synthetically generated. The forensic examination analyzes the container structure, frame and audio consistency, encoding jumps and AI-synthesis indicators, determining whether the material is intact and continuous.

Frame-by-frame analysis
Detection of cuts, jumps and reframing
Audio-video sync verification
Deepfake and AI-generation indicators
Container and device metadata
Report ratifiable in court
Instant WhatsApp OR CALL US 930 485 101
ONLINE REQUEST
Reply < 2 h
Request: Video Validation
Your data is protected and secure
Law 11/2023
The same legal validity as signing in person
Registered
Practising notaries of the Notarial Association of Spain
4,7 / 5
Average rating from more than 1.000 clients
< 2 h
Average response time to a request

When might you need it?

The most common cases for this procedure

Security cameras
CCTV recordings whose continuity is challenged in a proceeding.
Accidents and traffic
Dashcam or third-party videos establishing how the accident occurred.
Deepfakes and impersonation
Manipulated videos attributing statements or conduct to a person.
Labor disputes
Recordings submitted in dismissals or disciplinary proceedings.
REQUIREMENTS FOR THIS PROCEDURE
Provide the original file from the recording system, not a screen re-recording
Preserve the video in its original container and codec
For CCTV: export from the DVR/NVR using its native software, including index files
Specify the exact timestamp of interest and what is intended to be proven
DOCUMENTS YOU WILL NEED
01Original, complete video file
02Auxiliary files from the recording system (indexes, DVR/NVR logs)
03Capture device or system, if accessible
04Relevant timestamp and fact to be established
REGULATIONS: LEC arts. 299 and 382 ISO/IEC 27037 and 27042 LO 3/2018 (video surveillance and data protection) EU DSA Regulation 2022/2065 (synthetic content)

How does the process work?

From request to signed document, with no travelling

1 Receipt and sealing 2 Structural analysis 3 Content analysis 4 Expert report
1
Receipt and sealing
⏱ 24 h
Acquisition of the original with hash calculation. We always work on a forensic copy.
2
Structural analysis
⏱ 24-48 h
Container, codec, GOP, timestamps and frame sequence consistency.
3
Content analysis
⏱ 48 h
Search for cuts, reframing, speed alterations, audio desynchronization and deepfake indicators.
4
Expert report
⏱ 72 h
Findings on integrity and continuity, with supporting frames and in-court ratification.

Clients who have already done it

Verified reviews of this service

4,7★★★★★
★★★★★ES
"La otra parte alegaba que el vídeo de seguridad estaba editado. El peritaje demostró que era continuo e íntegro. Sentencia favorable."
AN
Alberto N.
CCTV · Valencia
★★★★★ES
"El informe sobre el vídeo de la dashcam reconstruyó la mecánica del accidente y desmontó la versión del contrario."
MC
Marta C.
Accidente · Madrid
★★★★★EN
"A manipulated video attributed statements to me that I never made. The forensic report identified the synthetic manipulation. Essential for the lawsuit."
CB
Chris B.
Deepfake · Barcelona
★★★★★IT
"Perizia sul video prodotto dall'azienda: dimostrato che era stato tagliato nel momento chiave. Lavoro tecnico eccellente."
GR
Giulia R.
Lavoro · Barcellona
★★★★★ES
"Necesitaba el trámite con urgencia y lo resolvieron en tiempo récord. El notario fue muy profesional y recibí el documento al día siguiente."
CR
Carmen R.
España
★★★★★EN
"Excellent service from start to finish. Everything was handled online and the signed document arrived within 24 hours. Highly recommended."
JW
James W.
Reino Unido
★★★★★ES
"Lo gestioné desde Buenos Aires sin viajar a España. Me guiaron paso a paso, incluso con el certificado digital. Todo claro y sin sorpresas."
MG
Mariana G.
Argentina
★★★★★FR
"Démarche réalisée entièrement en ligne depuis Paris. Équipe très réactive sur WhatsApp et notaire très professionnel. Impeccable."
SL
Sophie L.
Francia
★★★★★ES
"El proceso fue mucho más sencillo de lo que esperaba. Atención cercana por WhatsApp y presupuesto cerrado sin costes ocultos."
AM
Andrés M.
España
★★★★★DE
"Die Beurkundung wurde komplett online erledigt. Schnelle Terminvergabe, klare Anweisungen und das Dokument kam am nächsten Tag."
KB
Katrin B.
Alemania
★★★★★IT
"Pratica completata interamente online dall'Italia. Notaio disponibile e documento firmato in 24 ore. Servizio eccellente."
MT
Marco T.
Italia
★★★★★PT
"Tratei de tudo sem sair de Lisboa. Acompanhamento constante por WhatsApp e documento entregue no dia seguinte. Recomendo totalmente."
BS
Beatriz S.
Portugal
★★★★★ES
"Desde CDMX pensé que sería complicadísimo, pero salió a la primera. Videollamada puntual, notario clarísimo y precio cerrado."
GP
Gloria P.
México
★★★★★EN
"Handled from New York without flying to Spain. Clear instructions, fast scheduling and constant updates. Five stars."
SK
Sarah K.
Estados Unidos

Frequently asked questions

How long does the video analysis take?
The complete analysis takes between 5 and 7 business days, depending on video length and complexity. Longer videos or those with multiple suspects may require more time.
How should I send the video?+
Send the original video without re-encoding, as it was recorded or received. Use transfer platforms like WeTransfer or Google Drive. DO NOT send it via WhatsApp or social media that compress it.
Can you detect deepfakes?+
Yes, we use specialized artificial intelligence technology to detect deepfakes and face swaps. We analyze inconsistencies in facial movements, blinking, lip sync, and other indicators.
What is a deepfake?+
A deepfake is a video manipulated with artificial intelligence that can replace one person's face with another's very realistically, or generate fake content that appears authentic.
Can all types of editing be detected?+
We can detect most edits: cuts, montages, speed changes, duplications, insertions, etc. Very sophisticated professional edits may be more difficult, but there are always detectable traces.
Is the report legally valid?+
Yes, our reports have full legal validity. Experts can ratify the analysis in court and technically explain the conclusions.
Do you also analyze the audio?+
Yes, we analyze audio-video coherence, possible dubbing, lip sync, audio edits, and voice authenticity.
How much does the service cost?+
The price depends on video length and analysis complexity. Contact us for a personalized quote with no obligation.
Can the expert testify in court?+
Yes, our forensic experts are authorized to appear in court, ratify the expert report, and answer questions from the parties and judge. Their technical experience and professional certifications guarantee credibility before the court.
What video formats can you analyze?+
We analyze all common formats: MP4, AVI, MOV, WMV, FLV, MKV, MPEG, 3GP, and many others. We also work with files from specific cameras (dashcam, bodycam, CCTV) and proprietary formats from video surveillance systems. If you have a special format, consult us.
Can I send videos from social media?+
Yes, but keep in mind that social media (Facebook, Instagram, TikTok, Twitter) recompress videos when uploading, making forensic analysis more difficult. It is always better to provide the original unmodified file. If you only have the social media version, we can work with it but with technical limitations.
How long can the video to be analyzed be?+
There is no technical duration limit. We have analyzed clips of just seconds to recordings of several hours (complete video surveillance, recorded events, etc.). Analysis time and price are adjusted proportionally to the material length.
What is frame-by-frame analysis?+
It is the detailed examination of each individual frame of the video. A video at 30fps has 1,800 frames per minute. Frame-by-frame analysis allows detecting subtle inconsistencies, duplicated or deleted frames, abrupt changes in lighting or color, and other anomalies imperceptible in normal playback that evidence manipulation.
Can a deleted video be recovered?+
It depends on several factors: device type, time elapsed since deletion, and whether new data has been recorded over the deleted video's space. In some cases, we can perform forensic recovery of deleted data. It requires direct access to the original storage device (SD card, hard drive, phone).
What technical information does the report include?+
The report includes: EXIF metadata analysis (date, time, device, geolocation if available), container and codec examination, integrity verification through SHA-256 hashes, compression and re-encoding analysis, edit detection (cuts, insertions, modifications), AI deepfake evaluation, audio-video coherence analysis, complete frame-by-frame timeline of findings, well-founded technical conclusions, and photographic annexes. All documented according to ISO/IEC 27037 standards.
How is it detected that a video has been cut?+
Through jumps in the encoding structure (GOP), discontinuities in timestamps, abrupt changes in background audio noise, and inconsistencies in motion between frames. A cut that looks clean visually is almost never clean at the container level.
Is a screen recording of the video acceptable?+
It's the worst option: re-recording destroys metadata and structure, limiting the analysis to what is visible. Always export from the original system, including the DVR or NVR index files if it's CCTV footage.
Can you identify a deepfake?+
We analyze synthesis artifacts at facial edges, blinking, lighting consistency and lip-sync mismatches. The technology is advancing fast, so the report states the confidence level and which specific indicators support it.
How much video can be analyzed?+
Frame-by-frame analysis is intensive, so we narrow down the relevant footage and verify the overall integrity of the file. We quote based on duration and resolution.
Is security camera footage valid as evidence?+
Yes, provided the video surveillance complies with LO 3/2018 (informational signage, legitimate purpose, limited retention). The forensic examination also confirms that the submitted recording is intact and continuous.
Do documents signed online have the same validity as those signed in person?+
Exactly the same. Law 11/2023 recognises the full legal validity of notarial documents executed by video call with a qualified electronic signature before a registered notary.
Do I need a digital certificate?+
Yes, to sign electronically you need a digital certificate or an electronic DNI. If you do not have one, we help you obtain it quickly before your appointment, with no additional handling fee.
Can I do it from abroad?+
Yes, the notarial video call works from any country. You only need a stable connection, your valid identity document and a digital certificate.
How much does this service cost?+
The quote includes the official notarial fees set by the Notarial Association plus our handling, fixed before you start and with no hidden costs. Request it with no obligation via WhatsApp or the form.
What if I have questions during the process?+
Our team supports you from start to finish via WhatsApp, phone or email, and the notary answers all your legal questions before signing.
Ready to get started?
Request information with no obligation: we will contact you within 2 hours.
WhatsApp 930 485 101