examples of situations where law enforcement officers may use coercive force
Read, read, read:
http://www.bing.com/search?q=coercive+force+in+law+enforcement&form=PRUSEN&mkt=en-us&refig=8026f801028c4a8b9cab4c6ba4589fe4&pq=coercive+force+in+law+enforcement&sc=0-0&sp=-1&qs=n&sk=&cvid=8026f801028c4a8b9cab4c6ba4589fe4