Despite the increasing importance of digital forensics (DF) in criminal investigations, the field struggles with a lack of widespread adherence to established standards. This issue contributes to the production of potentially unreliable DF reports. Thus, this study investigates the reliability of DF reports from Swedish criminal investigations, focusing on gang-related murder and narcotics cases. The research strategy employed in this study was a survey in which 128 DF reports sourced from 20 different Swedish criminal investigations were scrutinised and the reliability validation criteria established by Stoykova et al. [1] were applied to assess the reliability of the acquisition, examination and analysis phases of the DF process. The study found that none of the DF reports included enough documentation to enable reliability validation of any of the phases of the DF process. Furthermore, several deficiencies in the DF process within Swedish law enforcement are identified, highlighting a lack of adherence to formal standards, undefined scope of the DF reports and insufficient documentation in the DF reports, particularly in the analysis phase. To combat these issues, Swedish law enforcement ought to establish standards and guidelines that outline requirements for the contents, format and structure of the DF reports their practitioners produce. It is also suggested that they provide their DF practitioners with comprehensive templates for different report types. Emphasising thorough analysis and providing enhanced training programs for DF practitioners is also recommended to ensure adherence to these standards and help maintain the integrity and reliability of the DF process.