Restore Deleted Video, DVR Recovery

DVR-Recovery-Restore-Deleted-Video-1024x576 Restore Deleted Video, DVR Recovery

Restore Deleted Video

Restore deleted video services is the process of examining and recovering a video recording from the original equipment that created it. These are video files stored on the hard drive that may have been damaged, deleted, extracted incorrectly, or falsely represented. CCTV DVR Recovery is the most common investigation request that Video Forensic Expert performs.

Accidentally deleted video files as well as intentional deletion are both data loss situations. Hard drives and other storage devices may be physically damaged in which case video files need to be carefully recovered. In order to perform the restore deleted video services accurately, investigators rely on qualified forensic recovery by a video forensic expert.

The objective of restoring deleted video is to recover footage that may be important to assisting the trier of fact. This may include restore deleted surveillance video.

DVR Recovery 

Training & Experience

Our experts and technicians have the tools and training to recover deleted videos in many video formats. Once we receive the system or drive that captured the deleted or lost videos, we perform a scanning process. This process will determine if any fragments of the video data is recoverable. The CCTV dvr recovery scanning process uses forensic tools to document the procedure, authenticate the video,  as well as the date/time the video was captured.

Forensic Recovery Tools, Formats, DVR Types

We have the ability to scan and recover video recordings from a DVR hard drive or system without the administrative passwords. We can scan popular makes/models of systems such as Swann, Zmodo, Q-See, HIKVision, Samsung and more. We can also scan EXT 2/3/4, FAT, XFS, JFS, and Unpartitioned space and other file types. Our tools have access to hundreds of DVR  video formats and proprietary coding necessary to recover lost video.

We have the ability to scan SATA, PATA and other hard disk connection types. The scanning result is then communicated to the client to identify the scope and provide an accurate cost estimate. This cost estimate is based on the size, accessibility and amount of recovered files necessary for analysis.

Our forensic tools to not affect the integrity of the original storage medium. In addition, our processes and procedures are based on best practices that are accepted in the scientific community.  These are the same processes that many law enforcement agencies use throughout the USA and internationally.

Litigation Preparation and Research

It is important that litigators understand the importance of recovering CCTV DVR video evidence forensically. There are three main reasons:

  1.   When we recover evidence on site, we document the process and video record it, which establishes an authentic chain of custody.
  2.   We take special precautions during the recovery process with the original recording we leave the recovery with.
  3.   We recover the recordings to minimize any degradation in quality. A multi-million dollar lawsuit may hinge on the analysis of a surveillance video evidence for example. It is best to trust the recovery of digital evidence to a forensically trained technician.

4-300x119 Restore Deleted Video, DVR Recovery

Most fixed and mobile DVR-based surveillance systems employ proprietary computer operating systems and record digital video to proprietary formats. Preservation of picture quality with minimal degradation during the conversion of proprietary to courtroom ready video is difficult. This is a challenge for both law enforcement agencies and video forensic experts.

There are a wide variety of surveillance systems and an even wider number of models of DVRs. Because of this, the technician is required to prepare ahead of time and acquire the appropriate equipment. Furthermore, they must also prevent accidental loss of files, and preserve the quality of the video recording. The preservation of quality is important if the files need to be converted for courtroom use.

DVR Recovery for Forensic Analysis

Common recording systems include but aren’t limited to; CCTV DVR (digital video recorder), NVR (network video recording) surveillance video systems, MDVR (mobile digital video recorder) video recorders,  police dash camera systems. Once recovered, the videos from CCTV can also be forensically enhanced.

Our recovered CCTV video recordings will also then be verified for authenticity. The investigation is carefully documented so that the digital evidence is preserved for further investigation.

The courts must be aware of the processes the expert used to recovery the recording. This helps to confirm that the recording was not retrieved under false pretenses or inaccurately. If the expert cannot provide information about the protocols used,  the evidence may not be admissible.

This will diminish the credibility of the expert and the investigation as a whole. A forensic expert must ensure thorough documentation of the retrieval, or their evidence may not make it into the courtroom.

When performing a CCTV DVR recovery service from video surveillance systems there are many quality factors to consider. Compressing or converting the recording may effect its quality in a negative way. Necessary compression will reduce the success of the forensic video enhancement.

Click HERE to learn about what some of our clients have said.

Video Forensic Expert Edward J Primeau Curriculum Vitae


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