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WHAT IS CCTV DVR DATA RECOVERY?

CCTV DVR Data Recovery is the process of examining and recovering a video recording from the original equipment that created it. These damaged, deleted, extracted incorrectly, or falsely represented still stored in the storage medium. DVR Hard Drive 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 DVR hard drive recovery is to recover footage that may be important to assisting the trier of fact. This may include restore deleted surveillance video.

DVR HARD DRIVE RECOVERY

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TRAINING & EXPERIENCE

Our experts and technicians have the tools and training to perform CCTV recovery 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 and video Date/Time.

FORENSIC RECOVERY TOOLS, FORMATS, DVR TYPES

Our team has the ability to scan and recover video recordings from a DVR hard drive without the administrative passwords.

Our equipment can scan popular makes/models of systems such as SwannZmodoQ-SeeHIKVisionSamsung 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 can also scan SATA, PATA and other hard disk connection types.

Evaluation of the available recovered data will determine the time required to recover the video content.  The cost of the investigation is dependent on the size, accessibility and amount of recoverable data.

Our forensic tools to not affect the integrity of the original storage medium or the CCTV footage. In addition, our processes and procedures derive from best practices established by 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.
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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. Our technicians 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 for courtroom ready playback.

RESTORE DELETED VIDEO 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.

Evidence authenticity of recovered CCTV video recordings is verifiable. The courts must be aware of the processes the expert used to recovery the recording. This confirms that the video footage was retrieved under true pretenses and with accuracy. If the expert cannot provide information about the protocols used,  the evidence may not be admissible.

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. Once the secure data is preserved, further analysis can be performed. Often times, expert witness testimony becomes necessary to present the secured evidence to the Trier of Fact.

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