A Honolulu police officer witnessed a baseball bat assault in Waianae Tuesday and arrested the man at the scene, according to the police report.
Officers responded to an argument call on Waianae Valley Road just before 9 p.m.
When the first officer arrived, he saw a 46-year-old man assaulting a 41-year-old man with a baseball bat.
The officer intervened and arrested the suspect for felony assault.
The victim suffered head injuries and refused medical treatment.