Given the ever-increasing prevalence of technology in modern life, there is a increase in the likelihood of digital devices being pertinent to criminal investigation or civil litigation. As a direct consequence, the of investigations requiring digital forensic expertise is resulting in digital evidence backlogs being encountered by law enforcement agencies the world. It can be anticipated that the number of cases requiring forensic analysis will greatly increase in the future. It is also that each case will require the analysis of an increasing number of including computers, smartphones, tablets, cloud-based services, of Things devices, wearables, etc. The variety of new digital evidence pose new and challenging problems for the digital investigator from an, acquisition, storage and analysis perspective. This paper the current challenges contributing to the backlog in digital from a technical standpoint and outlines a number of future research that could greatly contribute to a more efficient digital forensic.
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Lillis et al. (2016) studied this question.