Assurance standards applicable to digital forensics
Unfortunately there are no explicit rules to define Information Assurance for processing Forensic data. Forensic evidence must adhere to the Dauber principle and the Federal Rules of Evidence in the US, ACPO guidelines in the UK(ACPO,2012) and corresponding criteria elsewhere. ISO 27037 (ISO 27037:2012, 2012) addresses the acquisition and preservation of digital evidence but uses language such as “protected as far as possible” and that “evidence should be stored in an evidence facility that applies physical security controls”. Standards like ISO17025:2005, intended for ‘chemical’ laboratories, have been the basis of digital forensic facilities but the translation from the analogue to the digital world is not always easy. ISO 27001:2013 defines characteristics of a management system that provides assurance, but not assurance itself. PCI-DSS (PCI Security Standards Council) does provide a more prescriptive standard but doesn’t map well to digital forensics. When these are appropriate, unfortunately they are generally based upon the vague notion of ‘best practice’ and ‘the accepted norm’ in the particular field. It is difficult to apply in a rapidly developing domain, such as digital forensics, as technology changes are naturally always ahead of ‘best practice’ developments.
Assurance standards applicable to digital forensicsUnfortunately there are no explicit rules to define Information Assurance for processing Forensic data. Forensic evidence must adhere to the Dauber principle and the Federal Rules of Evidence in the US, ACPO guidelines in the UK(ACPO,2012) and corresponding criteria elsewhere. ISO 27037 (ISO 27037:2012, 2012) addresses the acquisition and preservation of digital evidence but uses language such as “protected as far as possible” and that “evidence should be stored in an evidence facility that applies physical security controls”. Standards like ISO17025:2005, intended for ‘chemical’ laboratories, have been the basis of digital forensic facilities but the translation from the analogue to the digital world is not always easy. ISO 27001:2013 defines characteristics of a management system that provides assurance, but not assurance itself. PCI-DSS (PCI Security Standards Council) does provide a more prescriptive standard but doesn’t map well to digital forensics. When these are appropriate, unfortunately they are generally based upon the vague notion of ‘best practice’ and ‘the accepted norm’ in the particular field. It is difficult to apply in a rapidly developing domain, such as digital forensics, as technology changes are naturally always ahead of ‘best practice’ developments.
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