Besides the overall result, another fact that surprised me: The devices vary in price, but the biggest expense is the data-storage cost. In Washington, M.P.D. officers collect about a thousand hours of footage a day. About 40 percent of it is deleted within 90 days, while the rest is to be kept for months, years or decades, depending on the statute of limitations for the charges connected to the footage.
This sounds like a good use case for cold storage like AWS glacier. If you assume 1000 hours of footage would be ~600GB, 1 day of footage would cost ~2.4 cents per month on glacier until you go to retrieve it. Or, 75 cents per month for each month of footage. Most footage would never be watched and eventually purged. I'm not sure how chain of custody would work...perhaps digitally signing the uploads and keeping thos…
Taser probably just puts the videos in AWS or something, but the markup is obscene.