It also may depend on any injury caused. If there was an altercation where one person was obviously to blame for a situation, as in an unprovoked attack, and the person attacked defends themselves without causing injury to the attacker, it would be extremely unlikely that police here would do more than interview the person who used force to defend them self. That could even occur if minor damage was inflicted. However, as soon as there is an injury there is the chance of civil litigation, a very good reason to ensure that force used is not excessive.
:asian:
:asian: