http://police-use-of-force-drops-60-...-video-cameras

The body cameras were introduced on officers in February 2012, over the next twelve months total complaints filed against them dropped by a staggering 88%, with use of force by officers dropping by 60%.
Seems like a pretty good idea to me, and the statistics from this year long test in CA seem to point to it actually working...

It protects officers from frivolous claims, and protects civilians from the bad apple cops being d-bags...