Introduction of concurrent processes into the digital forensic investigation process

Performing a digital forensic investigation requires a formalised process to be followed. It also requires that certain principles are applied, such as preserving of digital evidence and documenting actions. The need for a harmonised and standardised digital forensic investigation process has been recognised in the digital forensics community and much scientific work has been undertaken to produce digital forensic investigation process models, albeit with many disparities within the different models. The problem is that these existing models do not include any processes dealing explicitly with concurrent digital forensic principles. This leaves room for human error and omissions, as there is a lack of clear guidelines on the implementation of digital forensic principles. This paper proposes the introduction of concurrent processes into the digital forensic investigation process model. The authors define concurrent processes as the actions that should be conducted in parallel with other processes within the digital forensic investigation process, with the aim to fulfil digital forensic investigation principles. The concept of concurrent processes is a novel contribution that aims to enable more efficient and effective digital forensic investigations, while reducing the risk of human error and omissions that result in digital evidence being contaminated.