Web 2.0 fundamentally transformed the nature of publicly available information, allowing civilians to conduct detailed investigations of security issues using only open sources. In recent years,...Show moreWeb 2.0 fundamentally transformed the nature of publicly available information, allowing civilians to conduct detailed investigations of security issues using only open sources. In recent years, these online open-source investigation (OOSI) groups have attracted more attention, particularly in the media. This thesis evaluates the concept of civilian OOSI using two competing theoretical perspectives. According to Pantumsinchai’s interpretation of actor-network theory, these groups have an inherent propensity to spread misinformation, but according to Nhan et al.’s interpretation of nodal governance theory, these groups can be powerful security actors if they properly manage their characteristics. This thesis uses a qualitative case study of Bellingcat’s (a civilian OOSI group) investigation of the downing of Malaysia Airlines Flight 17 in 2014. Using this case study method, I conclude that Nhan et al.’s nodal governance theory is the superior theoretical lens for examining civilian OOSI and that the proliferation of misinformation is not an inherent issue with civilian OOSIShow less