Officers from Greensborough Highway Patrol have issued 50 car owners defect notices during an operation targeting hoon drivers in Thomastown on Saturday.
200 vehicle owners allegedly associated with recent hoon activity in the Truganina, Campbellfield, Thomastown, and Mickleham areas were instructed to present their vehicle for roadworthy inspections.
Between 2pm and 7pm, 121 cars attended the operation site at a carpark near the intersection of Dalton and Settlement roads.
Police issued 50 defect notices for mechanical faults, engine modifications, window tinting and tyre issues.
Six of those who received defect notices also received infringement notices for more serious defects and other traffic related offences.
Every defect notice issued will require owners to have these defects in their vehicles either repaired or replaced.
Once they have fixed the defect, the drivers need to present their vehicles to VicRoads for clearance. If the owner fails to obtain a clearance within four weeks, the registration of the vehicle may be suspended.
The remaining car owners who did not attend have either arranged to meet with police at another time or will have their registrations suspended.