A POLICE officer was allegedly assaulted by two motorcycle riders after attempting to pull them over for a regulation traffic stop at Karrabin yesterday.
Police said the traffic cop had followed the riders for a short distance, after both initially failed to pull over, about 3.30pm.
The riders eventually led the officer to a yard in the vicinity of Keswick Rd, Karrabin, where police say the officer was punched several times.
The officer called for back-up after being threatened with a baseball bat. His injuries were not thought to have been serious.
Several other police vehicles arrived and three men were apprehended a short distance away and taken into custody.
Police did not detail the involvement of the third person.
Inspector Dave Preston said the riders were not members of an outlaw motorcycle gang and were not being targeted by police for any specific purpose, other than for a routine traffic stop.
Investigations were continuing last night.