Fresno police arrested 20-year-old Emilio Aparicio, following a disturbance call in Southeast Fresno around 2:30 Sunday morning.
Authorities say he appeared to be heavily intoxicated when he head-butted an officer.
After his arrest, police learned he had been taken into custody just 24 hours earlier on weapons charges.
Aparicio was booked in to the Fresno County Jail for assaulting a police officer.
