Mandurah police are calling for witnesses after allegedly discovering weapons in a car after a pursuit in Singleton last night.
About 7.45pm, Mandurah police conducting patrols observed a suspicious blue Ford Falcon at the intersection of Mandurah Road and Singleton Beach Road.
Officers lost sight of the Ford as it sped along Mandurah Road.
Police claim about 350m from the intersection, the Ford crashed into a wire fence line about 20m from the road.
As police arrived they saw the two front doors of the vehicle were open and believed the occupants had fled into bushland. Police took the rear passenger, a man in his 20s, into custody.
The area was cordoned off and others officers attended the scene.
Police dog Utah was deployed and he searched the area until he located a scent.
Utah located a man in his 30s hiding in the scrub. It is alleged the man resisted arrest, which led to him receiving a dog bite to his leg and he was taken to Peel Health Campus for treatment.
During a search of the vehicle, several items of interest were located including two firearms and shotgun cartridges.
The investigation is ongoing and no charges have been laid at this time.
Anyone with further information that can assist in this investigation is asked to call Crime Stoppers on 1800 333 000 or make a report online atwww.crimestopperswa.com.au