Three people were arrested on Tuesday afternoon after a dramatic arrest on Narrows Bridge.
It is clear that authorities detained a car after a police license plate scanner issued a warning for the Hyundai.
Officers restricted traffic to just one lane when they intercepted the vehicle.
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At least one more police car was called for reinforcements and three people were taken into custody for questioning.
It is clear that one of them was wanted by the WA police.
Vision captured by 7NEWS showed items seized by police from the car on nearby Fraser Lane in South Perth.