Just a great website I came across today, protecting police dogs:  http://www.ivestadog.org/

Illinois Vest-a-Dog is a non-profit organization dedicated to protecting the lives of K-9 police dogs through the purchase and donation of bullet and stab resistant vests.

The goal of their organization is to vest every Illinois police dog whose handler wants one for their K-9 partner. 

The vests cost $825 each.  This particular vest is both bullet and stab resistant, is light weight (3.5 lbs) and has several adjustments to allow for easy mobility of the K-9.

For more information about their fund raisers or to learn about how you can donate a vest please visit their site.