“Earlier this year, a 12-month study by Cambridge University researchers revealed that when the city of Rialto, California, required its cops to wear cameras, the number of complaints filed against officers fell by 88% and the use of force by officers dropped by almost 60%. Watched cops are polite cops.”
Law abiding police have nothing to fear from such a requirement. It will make their job and the justice system's job easier and help keep officers safer since anyone thinking of harming them will know there is video evidence.