Dashcams are proliferating. In some states of Australia, more than 10% of vehicles are fitted with this technology, and about 50% more want it. There has been a boom of followers of dashcam data, one Facebook site has about 200K members. Police in some states are encouraging people to store data that might be used toward prosecuting those involved in adverse driving behaviour, while in other states like Victoria, police are more circumspect about the use of dashcams and body-worn video recorders. Cameras can have an equiveillance effect, power by police is countered by citizen power through crowdsourced sousveillance. Yet, while footage might have been recorded, it is not always readily available given records management cycles and the like. It becomes particularly unappealing when law enforcement do not hand over important data on its officers, and the whole purpose of data retention comes into question. Complaints against officers have allegedly decreased as a result of body worn video recorders used by police forces, and evidence for the "use of force" by police have been supported by camera evidence. However, visual data is not unbiased as most would have it believe. It is contextual and like any data it can be used to misrepresent cases.
Tim Holt and Katina Michael. January 31, 2015, "Dashcams Used to Gather Evidence of Adverse Driver Behaviour: Police Encourage Reporting by Citizens" ABC South East NSW Radio: Mornings with Tim Holt (2015), Available at: http://works.bepress.com/kmichael/516/