Devon & Cornwall Police are now working with Operation Snap, “a secure online facility which allows submissions of video and photographic evidence relating to driving incidents that members of the public have witnessed. Produced with the support of the Department for Transport.”
You can read in much more detail about it here, and you can submit your dash cam footage here.
You need to note the warnings within the Op Snap information, because if you break the law yourself during the footage, or in order to obtain the footage, you will be prosecuted as well!
Also dont’ forget – who is recording you?