Viridian Weapon Technologies has unveiled the Fact Duty camera, which starts filming and recording sound when it is taken out of the holster.
Brian Hedeen, president of Viridian Weapon Technologies, said: "As we've seen, there have been a lot of high-profile incidents over the last few years where it's not really clear what happened, and this is meant to provide that missing piece of evidence."
The 3-inch-long camera - which is placed in front of the trigger - is currently being planned to go to trial in October, with West Hennepin Public Safety Department that looks after Independence and Maple Plain and a department in Arizona, already signed up.
West Hennepin Public Safety Director Gary Kroells added: "[Viridian] asked if we would review the product. We like the concept."
The camera attachment also comes with a small light, which gives off a light that is roughly the strength of a flashlight.
Purchased in bulk, the cameras are likely to cost about $500 each and the idea of them intrigues the American Civil Liberties Union of Minnesota.
Teresa Nelson, interim executive director of the American Civil Liberties Union of Minnesota, shared to Minnesota's Star Tribune newspaper: "We're in a moment right now when the community is demanding more transparency and accountability from police officers in the way they do their jobs and use force; tools that can provide that transparency, I view as a good thing. They are never going to be an end-all and be-all, but it is another source of information."