Police Follow 21-Foot Shooting Rule

SAINT PAUL, Minn. - It was a split second decision for St. Paul officers Monday night at the Super 8 Motel: shoot, or don't shoot. Police follow a 21-foot rule to make the decision.

Police say the suspect in this case was armed with a heavy utility knife, one in each hand.
He was within just a few strides of the officers.

http://www.myfoxtwincities.com/dpp/news/police-follow-21-foot-shooting-rule-july-20-2010