The national upheaval from Michael Brown's death in Ferguson, Mo., and some others since, has put enormous pressure on law enforcement to find ways to control people's behavior while using less violence. One possibility — simple but repugnant to some officers — is to teach police to back away from certain difficult situations until help can arrive, reports the St. Louis Post-Dispatch .
The concept is known as "tactical retreat" or sometimes "tactical withdrawal" or "tactical restraint."