Police were confronted by around 200 people when they were called to an out-of-control party in Bentley late on Friday night.
Officers went to a house on Gambar Court just before midnight after complaints people were fighting on the street.
The householder told police uninvited guests were refusing to leave.
As officers removed several people, one man, from The Vines, refused to cooperate and was charged with obstruction and disorderly conduct.
A 20-year-old Menora man received face injuries after being hit by another party guest.
A 20-year-old Nollamara man was arrested and charged with two counts of assault occasioning bodily harm.
Source: watoday.com.au
