What Is Digital Evidence?

To begin with digital evidence, we should know the term that has two parts: digital and evidence.

  • Digital: Computers and other electronic devices store and process information in the form of binary digits, or zeros and ones, called digital devices, which includes most of the electronic devices we use today.
  • Evidence: This part of the term is rooted in the classic definition of evidence in legal terms: the traces of interactions between persons, items, or objects.Every activity in the real-world leaves traces or prints.

So do the activities performed in the digital world where digital evidence consists of these digital footprints of investigative value—prints that can help a court or jury reach the truth.

It is important to note that every piece of digital information found during the investigations is not digital evidence. Digital evidence is the information that helps establish the fact that the crime has been committed or establishes links between crime, victim, and culprit.

What Is Mobile Forensics?

Our mobile devices are not just for calls and SMS anymore; they are the catalogues of our actions and interests. Personal devices like smartphones and tablets are so closely integrated into our lives that they retain a record of the things that even we forget, which is said that our devices know us better than even we do.

Under the circumstance, it means even more in mobile forensics.

An Intro to Video Surveillance Recovery for Hikvision

As we all know digital forensics deals with digital evidence, while among all of them, video evidence especially video surveillance like DVR or NVR video footage among CCTV, takes up quite a bit of ratio.
Given the digitalized world we operate in, surveillance videos have become an increasingly integral aspect of investigations in the private, law enforcement, and intelligence, detective agencies.
However, during the investigation, there are always instances where surveillance videos have to be recovered for case cracking or other purposes.

Today, we’ll introduce what is  surveillance  video recovery and dive into the way digital forensic investigators enhance their performance in surveillance cameras video recovery.

How to Recover Deleted Videos from SD Card in Digital Forensics?

Accidental deletion, corruption, or formatting can happen unexpectedly, but in many cases, recovering videos from your SD card is possible if you act quickly and use the right forensic methods. This updated 2025 guide explains why videos are lost, how SD card recovery works in digital forensics, and step-by-step workflows with trusted tools to help you recover your crucial data safely and efficiently. Whether you’re a forensic examiner, investigator, or simply need to restore important personal footage, this guide will give you practical, clear instructions to recover SD card videos without risking permanent data loss.